Merge pull request #2311 in HDFFV/hdf5 from ~KMU/hdf5:misc to develop

* commit '406330addf45529ecdd088f4d22e9aab9a03661d':
  rename macro
  change condition
  pick up from Dave's fix
  leave Wswitch-default for later fix
  fix Wredundant-decls, Wswitch-default, Wdeclaration-after-statement, Wsign-compare, Wmisleading-indentation, Wshadow

8 files changed, 291 insertions, 289 deletions

diff --git a/testpar/t_2Gio.c b/testpar/t_2Gio.c
index 1d6f87c..6939585 100644
--- a/testpar/t_2Gio.c
+++ b/testpar/t_2Gio.c
@@ -2125,7 +2125,7 @@ extend_writeInd2(void)
 {
     const char *filename;
     hid_t fid;                  /* HDF5 file ID */
-    hid_t fapl;            /* File access templates */
+    hid_t fapl_id;            /* File access templates */
     hid_t fs;           /* File dataspace ID */
     hid_t ms;           /* Memory dataspace ID */
     hid_t dataset;        /* Dataset ID */
@@ -2153,15 +2153,15 @@ extend_writeInd2(void)
      * START AN HDF5 FILE
      * -------------------*/
     /* setup file access template */
-    fapl = create_faccess_plist(test_comm, MPI_INFO_NULL, facc_type);
-    VRFY((fapl >= 0), "create_faccess_plist succeeded");
+    fapl_id = create_faccess_plist(test_comm, MPI_INFO_NULL, facc_type);
+    VRFY((fapl_id >= 0), "create_faccess_plist succeeded");
 
     /* create the file collectively */
-    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
     VRFY((fid >= 0), "H5Fcreate succeeded");
 
     /* Release file-access template */
-    ret = H5Pclose(fapl);
+    ret = H5Pclose(fapl_id);
     VRFY((ret >= 0), "H5Pclose succeeded");
 
 
@@ -3379,7 +3379,7 @@ test_actual_io_mode(int selection_mode) {
     hid_t       sid = -1;
     hid_t       dataset = -1;
     hid_t       data_type = H5T_NATIVE_INT;
-    hid_t       fapl = -1;
+    hid_t       fapl_id = -1;
     hid_t       mem_space = -1;
     hid_t       file_space = -1;
     hid_t       dcpl = -1;
@@ -3430,11 +3430,11 @@ test_actual_io_mode(int selection_mode) {
     HDassert(filename != NULL);
 
     /* Setup the file access template */
-    fapl = create_faccess_plist(mpi_comm, mpi_info, facc_type);
-    VRFY((fapl >= 0), "create_faccess_plist() succeeded");
+    fapl_id = create_faccess_plist(mpi_comm, mpi_info, facc_type);
+    VRFY((fapl_id >= 0), "create_faccess_plist() succeeded");
 
     /* Create the file */
-    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
     VRFY((fid >= 0), "H5Fcreate succeeded");
 
     /* Create the basic Space */
@@ -3766,7 +3766,7 @@ test_actual_io_mode(int selection_mode) {
 
     /* Release some resources */
     ret = H5Sclose(sid);
-    ret = H5Pclose(fapl);
+    ret = H5Pclose(fapl_id);
     ret = H5Pclose(dcpl);
     ret = H5Pclose(dxpl_write);
     ret = H5Pclose(dxpl_read);
@@ -3895,7 +3895,7 @@ test_no_collective_cause_mode(int selection_mode)
     hid_t       sid = -1;
     hid_t       dataset = -1;
     hid_t       data_type = H5T_NATIVE_INT;
-    hid_t       fapl = -1;
+    hid_t       fapl_id = -1;
     hid_t       dcpl = -1;
     hid_t       dxpl_write = -1;
     hid_t       dxpl_read = -1;
@@ -3976,11 +3976,11 @@ test_no_collective_cause_mode(int selection_mode)
     HDassert(filename != NULL);
 
     /* Setup the file access template */
-    fapl = create_faccess_plist(mpi_comm, mpi_info, l_facc_type);
-    VRFY((fapl >= 0), "create_faccess_plist() succeeded");
+    fapl_id = create_faccess_plist(mpi_comm, mpi_info, l_facc_type);
+    VRFY((fapl_id >= 0), "create_faccess_plist() succeeded");
 
     /* Create the file */
-    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
+    fid = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
 
     VRFY((fid >= 0), "H5Fcreate succeeded");
 
@@ -4147,8 +4147,8 @@ test_no_collective_cause_mode(int selection_mode)
     /* Release some resources */
     if (sid)
         H5Sclose(sid);
-    if (fapl)
-        H5Pclose(fapl);
+    if (fapl_id)
+        H5Pclose(fapl_id);
     if (dcpl)
         H5Pclose(dcpl);
     if (dxpl_write)
diff --git a/testpar/t_bigio.c b/testpar/t_bigio.c
index 45396de..ad5f2d8 100644
--- a/testpar/t_bigio.c
+++ b/testpar/t_bigio.c
@@ -15,7 +15,7 @@ const char *FILENAME[3]={ "bigio_test.h5",
 /* Define some handy debugging shorthands, routines, ... */
 /* debugging tools */
 
-#define MAINPROCESS     (!mpi_rank) /* define process 0 as main process */
+#define MAIN_PROCESS     (!mpi_rank_g) /* define process 0 as main process */
 
 /* Constants definitions */
 #define RANK        2
@@ -43,14 +43,13 @@ int facc_type = FACC_MPIO;        /*Test file access type */
 int dxfer_coll_type = DXFER_COLLECTIVE_IO;
 size_t bigcount = (size_t)DXFER_BIGCOUNT;
 int nerrors = 0;
-int mpi_size, mpi_rank;
+static int mpi_size_g, mpi_rank_g;
 
 hsize_t space_dim1 = SPACE_DIM1 * 256; // 4096
 hsize_t space_dim2 = SPACE_DIM2;
 
 static void coll_chunktest(const char* filename, int chunk_factor, int select_factor,
                            int api_option, int file_selection, int mem_selection, int mode);
-hid_t create_faccess_plist(MPI_Comm comm, MPI_Info info, int l_facc_type);
 
 hsize_t H5_mpi_set_bigio_count(hsize_t new_count);
 
@@ -293,8 +292,8 @@ ccslab_set(int mpi_rank,
         count[1]  = 1;
         start[1]  = 0;
         stride[1] = 1;
-    if((mpi_rank *3)<(mpi_size*2)) start[0]  = (hsize_t)mpi_rank;
-    else start[0] = 1 + space_dim1*(hsize_t)mpi_size/2 + (hsize_t)(mpi_rank-2*mpi_size/3);
+        if((mpi_rank *3)<(mpi_size*2)) start[0]  = (hsize_t)mpi_rank;
+        else start[0] = 1 + space_dim1*(hsize_t)mpi_size/2 + (hsize_t)(mpi_rank-2*mpi_size/3);
         break;
 
     case BYROW_SELECTINCHUNK:
@@ -302,12 +301,12 @@ ccslab_set(int mpi_rank,
 
         block[0] = 1;
         count[0] = 1;
-    start[0] = (hsize_t)mpi_rank*space_dim1;
+        start[0] = (hsize_t)mpi_rank*space_dim1;
         stride[0]= 1;
-    block[1] = space_dim2;
-    count[1] = 1;
-    stride[1]= 1;
-    start[1] = 0;
+        block[1] = space_dim2;
+        count[1] = 1;
+        stride[1]= 1;
+        start[1] = 0;
 
         break;
 
@@ -500,53 +499,53 @@ dataset_big_write(void)
 
     /* allocate memory for data buffer */
     wdata = (B_DATATYPE *)HDmalloc(bigcount*sizeof(B_DATATYPE));
-    VRFY((wdata != NULL), "wdata malloc succeeded");
+    VRFY_G((wdata != NULL), "wdata malloc succeeded");
 
     /* setup file access template */
     acc_tpl = H5Pcreate (H5P_FILE_ACCESS);
-    VRFY((acc_tpl >= 0), "H5P_FILE_ACCESS");
+    VRFY_G((acc_tpl >= 0), "H5P_FILE_ACCESS");
     H5Pset_fapl_mpio(acc_tpl, MPI_COMM_WORLD, MPI_INFO_NULL);
 
     /* create the file collectively */
     fid = H5Fcreate(FILENAME[0], H5F_ACC_TRUNC, H5P_DEFAULT, acc_tpl);
-    VRFY((fid >= 0), "H5Fcreate succeeded");
+    VRFY_G((fid >= 0), "H5Fcreate succeeded");
 
     /* Release file-access template */
     ret = H5Pclose(acc_tpl);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
 
 
     /* Each process takes a slabs of rows. */
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nTesting Dataset1 write by ROW\n");
     /* Create a large dataset */
     dims[0] = bigcount;
-    dims[1] = (hsize_t)mpi_size;
+    dims[1] = (hsize_t)mpi_size_g;
 
     sid = H5Screate_simple (RANK, dims, NULL);
-    VRFY((sid >= 0), "H5Screate_simple succeeded");
+    VRFY_G((sid >= 0), "H5Screate_simple succeeded");
     dataset = H5Dcreate2(fid, DATASET1, H5T_NATIVE_LLONG, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dcreate2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dcreate2 succeeded");
     H5Sclose(sid);
 
-    block[0] = dims[0]/(hsize_t)mpi_size;
+    block[0] = dims[0]/(hsize_t)mpi_size_g;
     block[1] = dims[1];
     stride[0] = block[0];
     stride[1] = block[1];
     count[0] = 1;
     count[1] = 1;
-    start[0] = (hsize_t)mpi_rank*block[0];
+    start[0] = (hsize_t)mpi_rank_g*block[0];
     start[1] = 0;
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-    VRFY((ret >= 0), "H5Sset_hyperslab succeeded");
+    VRFY_G((ret >= 0), "H5Sset_hyperslab succeeded");
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, block, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* fill the local slab with some trivial data */
     fill_datasets(start, block, wdata);
@@ -558,17 +557,17 @@ dataset_big_write(void)
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((xfer_plist >= 0), "H5Pcreate xfer succeeded");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pset_dxpl_mpio succeeded");
+    VRFY_G((ret >= 0), "H5Pset_dxpl_mpio succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     ret = H5Dwrite(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                    xfer_plist, wdata);
-    VRFY((ret >= 0), "H5Dwrite dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dwrite dataset1 succeeded");
 
     /* release all temporary handles. */
     H5Sclose(file_dataspace);
@@ -576,40 +575,40 @@ dataset_big_write(void)
     H5Pclose(xfer_plist);
 
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
 
     /* Each process takes a slabs of cols. */
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nTesting Dataset2 write by COL\n");
     /* Create a large dataset */
     dims[0] = bigcount;
-    dims[1] = (hsize_t)mpi_size;
+    dims[1] = (hsize_t)mpi_size_g;
 
     sid = H5Screate_simple (RANK, dims, NULL);
-    VRFY((sid >= 0), "H5Screate_simple succeeded");
+    VRFY_G((sid >= 0), "H5Screate_simple succeeded");
     dataset = H5Dcreate2(fid, DATASET2, H5T_NATIVE_LLONG, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dcreate2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dcreate2 succeeded");
     H5Sclose(sid);
 
     block[0] = dims[0];
-    block[1] = dims[1]/(hsize_t)mpi_size;
+    block[1] = dims[1]/(hsize_t)mpi_size_g;
     stride[0] = block[0];
     stride[1] = block[1];
     count[0] = 1;
     count[1] = 1;
     start[0] = 0;
-    start[1] = (hsize_t)mpi_rank*block[1];
+    start[1] = (hsize_t)mpi_rank_g*block[1];
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-    VRFY((ret >= 0), "H5Sset_hyperslab succeeded");
+    VRFY_G((ret >= 0), "H5Sset_hyperslab succeeded");
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, block, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* fill the local slab with some trivial data */
     fill_datasets(start, block, wdata);
@@ -621,17 +620,17 @@ dataset_big_write(void)
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((xfer_plist >= 0), "H5Pcreate xfer succeeded");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pset_dxpl_mpio succeeded");
+    VRFY_G((ret >= 0), "H5Pset_dxpl_mpio succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     ret = H5Dwrite(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                    xfer_plist, wdata);
-    VRFY((ret >= 0), "H5Dwrite dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dwrite dataset1 succeeded");
 
     /* release all temporary handles. */
     H5Sclose(file_dataspace);
@@ -639,51 +638,51 @@ dataset_big_write(void)
     H5Pclose(xfer_plist);
 
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
 
 
     /* ALL selection */
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nTesting Dataset3 write select ALL proc 0, NONE others\n");
     /* Create a large dataset */
     dims[0] = bigcount;
     dims[1] = 1;
 
     sid = H5Screate_simple (RANK, dims, NULL);
-    VRFY((sid >= 0), "H5Screate_simple succeeded");
+    VRFY_G((sid >= 0), "H5Screate_simple succeeded");
     dataset = H5Dcreate2(fid, DATASET3, H5T_NATIVE_LLONG, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dcreate2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dcreate2 succeeded");
     H5Sclose(sid);
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
-    if(mpi_rank == 0) {
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
+    if(mpi_rank_g == 0) {
         ret = H5Sselect_all(file_dataspace);
-        VRFY((ret >= 0), "H5Sset_all succeeded");
+        VRFY_G((ret >= 0), "H5Sset_all succeeded");
     }
     else {
         ret = H5Sselect_none(file_dataspace);
-        VRFY((ret >= 0), "H5Sset_none succeeded");
+        VRFY_G((ret >= 0), "H5Sset_none succeeded");
     }
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, dims, NULL);
-    VRFY((mem_dataspace >= 0), "");
-    if(mpi_rank != 0) {
+    VRFY_G((mem_dataspace >= 0), "");
+    if(mpi_rank_g != 0) {
         ret = H5Sselect_none(mem_dataspace);
-        VRFY((ret >= 0), "H5Sset_none succeeded");
+        VRFY_G((ret >= 0), "H5Sset_none succeeded");
     }
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((xfer_plist >= 0), "H5Pcreate xfer succeeded");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pset_dxpl_mpio succeeded");
+    VRFY_G((ret >= 0), "H5Pset_dxpl_mpio succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     /* fill the local slab with some trivial data */
@@ -695,7 +694,7 @@ dataset_big_write(void)
 
     ret = H5Dwrite(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                    xfer_plist, wdata);
-    VRFY((ret >= 0), "H5Dwrite dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dwrite dataset1 succeeded");
 
     /* release all temporary handles. */
     H5Sclose(file_dataspace);
@@ -703,19 +702,19 @@ dataset_big_write(void)
     H5Pclose(xfer_plist);
 
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
     /* Point selection */
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nTesting Dataset4 write point selection\n");
     /* Create a large dataset */
     dims[0] = bigcount;
-    dims[1] = (hsize_t)(mpi_size * 4);
+    dims[1] = (hsize_t)(mpi_size_g * 4);
 
     sid = H5Screate_simple (RANK, dims, NULL);
-    VRFY((sid >= 0), "H5Screate_simple succeeded");
+    VRFY_G((sid >= 0), "H5Screate_simple succeeded");
     dataset = H5Dcreate2(fid, DATASET4, H5T_NATIVE_LLONG, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dcreate2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dcreate2 succeeded");
     H5Sclose(sid);
 
     block[0] = dims[0]/2;
@@ -725,19 +724,19 @@ dataset_big_write(void)
     count[0] = 1;
     count[1] = 1;
     start[0] = 0;
-    start[1] = dims[1]/(hsize_t)mpi_size * (hsize_t)mpi_rank;
+    start[1] = dims[1]/(hsize_t)mpi_size_g * (hsize_t)mpi_rank_g;
 
     num_points = bigcount;
 
     coords = (hsize_t *)HDmalloc(num_points * RANK * sizeof(hsize_t));
-    VRFY((coords != NULL), "coords malloc succeeded");
+    VRFY_G((coords != NULL), "coords malloc succeeded");
 
     set_coords (start, count, stride, block, num_points, coords, IN_ORDER);
     /* create a file dataspace */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
-    VRFY((ret >= 0), "H5Sselect_elements succeeded");
+    VRFY_G((ret >= 0), "H5Sselect_elements succeeded");
 
     if(coords) free(coords);
 
@@ -754,21 +753,21 @@ dataset_big_write(void)
      * appears to cause problems with 32 bit compilers.
      */
     mem_dataspace = H5Screate_simple (1, dims, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((xfer_plist >= 0), "H5Pcreate xfer succeeded");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pset_dxpl_mpio succeeded");
+    VRFY_G((ret >= 0), "H5Pset_dxpl_mpio succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     ret = H5Dwrite(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                    xfer_plist, wdata);
-    VRFY((ret >= 0), "H5Dwrite dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dwrite dataset1 succeeded");
 
     /* release all temporary handles. */
     H5Sclose(file_dataspace);
@@ -776,7 +775,7 @@ dataset_big_write(void)
     H5Pclose(xfer_plist);
 
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
     HDfree(wdata);
     H5Fclose(fid);
@@ -812,52 +811,52 @@ dataset_big_read(void)
 
     /* allocate memory for data buffer */
     rdata = (B_DATATYPE *)HDmalloc(bigcount*sizeof(B_DATATYPE));
-    VRFY((rdata != NULL), "rdata malloc succeeded");
+    VRFY_G((rdata != NULL), "rdata malloc succeeded");
     wdata = (B_DATATYPE *)HDmalloc(bigcount*sizeof(B_DATATYPE));
-    VRFY((wdata != NULL), "wdata malloc succeeded");
+    VRFY_G((wdata != NULL), "wdata malloc succeeded");
 
     HDmemset(rdata, 0, bigcount*sizeof(B_DATATYPE));
 
     /* setup file access template */
     acc_tpl = H5Pcreate (H5P_FILE_ACCESS);
-    VRFY((acc_tpl >= 0), "H5P_FILE_ACCESS");
+    VRFY_G((acc_tpl >= 0), "H5P_FILE_ACCESS");
     H5Pset_fapl_mpio(acc_tpl, MPI_COMM_WORLD, MPI_INFO_NULL);
 
     /* open the file collectively */
     fid=H5Fopen(FILENAME[0],H5F_ACC_RDONLY,acc_tpl);
-    VRFY((fid >= 0), "H5Fopen succeeded");
+    VRFY_G((fid >= 0), "H5Fopen succeeded");
 
     /* Release file-access template */
     ret = H5Pclose(acc_tpl);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
 
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nRead Testing Dataset1 by COL\n");
 
     dataset = H5Dopen2(fid, DATASET1, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dopen2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dopen2 succeeded");
 
     dims[0] = bigcount;
-    dims[1] = (hsize_t)mpi_size;
+    dims[1] = (hsize_t)mpi_size_g;
     /* Each process takes a slabs of cols. */
     block[0] = dims[0];
-    block[1] = dims[1]/(hsize_t)mpi_size;
+    block[1] = dims[1]/(hsize_t)mpi_size_g;
     stride[0] = block[0];
     stride[1] = block[1];
     count[0] = 1;
     count[1] = 1;
     start[0] = 0;
-    start[1] = (hsize_t)mpi_rank*block[1];
+    start[1] = (hsize_t)mpi_rank_g*block[1];
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-    VRFY((ret >= 0), "H5Sset_hyperslab succeeded");
+    VRFY_G((ret >= 0), "H5Sset_hyperslab succeeded");
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, block, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* fill dataset with test data */
     fill_datasets(start, block, wdata);
@@ -868,18 +867,18 @@ dataset_big_read(void)
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "");
+    VRFY_G((xfer_plist >= 0), "");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((ret >= 0), "H5Pcreate xfer succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     /* read data collectively */
     ret = H5Dread(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                   xfer_plist, rdata);
-    VRFY((ret >= 0), "H5Dread dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dread dataset1 succeeded");
 
     /* verify the read data with original expected data */
     ret = verify_data(start, count, stride, block, rdata, wdata);
@@ -890,36 +889,36 @@ dataset_big_read(void)
     H5Sclose(mem_dataspace);
     H5Pclose(xfer_plist);
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
 
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nRead Testing Dataset2 by ROW\n");
     HDmemset(rdata, 0, bigcount*sizeof(B_DATATYPE));
     dataset = H5Dopen2(fid, DATASET2, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dopen2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dopen2 succeeded");
 
     dims[0] = bigcount;
-    dims[1] = (hsize_t)mpi_size;
+    dims[1] = (hsize_t)mpi_size_g;
     /* Each process takes a slabs of rows. */
-    block[0] = dims[0]/(hsize_t)mpi_size;
+    block[0] = dims[0]/(hsize_t)mpi_size_g;
     block[1] = dims[1];
     stride[0] = block[0];
     stride[1] = block[1];
     count[0] = 1;
     count[1] = 1;
-    start[0] = (hsize_t)mpi_rank*block[0];
+    start[0] = (hsize_t)mpi_rank_g*block[0];
     start[1] = 0;
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-    VRFY((ret >= 0), "H5Sset_hyperslab succeeded");
+    VRFY_G((ret >= 0), "H5Sset_hyperslab succeeded");
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, block, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* fill dataset with test data */
     fill_datasets(start, block, wdata);
@@ -930,18 +929,18 @@ dataset_big_read(void)
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "");
+    VRFY_G((xfer_plist >= 0), "");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((ret >= 0), "H5Pcreate xfer succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     /* read data collectively */
     ret = H5Dread(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                   xfer_plist, rdata);
-    VRFY((ret >= 0), "H5Dread dataset2 succeeded");
+    VRFY_G((ret >= 0), "H5Dread dataset2 succeeded");
 
     /* verify the read data with original expected data */
     ret = verify_data(start, count, stride, block, rdata, wdata);
@@ -952,35 +951,35 @@ dataset_big_read(void)
     H5Sclose(mem_dataspace);
     H5Pclose(xfer_plist);
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nRead Testing Dataset3 read select ALL proc 0, NONE others\n");
     HDmemset(rdata, 0, bigcount*sizeof(B_DATATYPE));
     dataset = H5Dopen2(fid, DATASET3, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dopen2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dopen2 succeeded");
 
     dims[0] = bigcount;
     dims[1] = 1;
 
     /* create a file dataspace independently */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
-    if(mpi_rank == 0) {
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
+    if(mpi_rank_g == 0) {
         ret = H5Sselect_all(file_dataspace);
-        VRFY((ret >= 0), "H5Sset_all succeeded");
+        VRFY_G((ret >= 0), "H5Sset_all succeeded");
     }
     else {
         ret = H5Sselect_none(file_dataspace);
-        VRFY((ret >= 0), "H5Sset_none succeeded");
+        VRFY_G((ret >= 0), "H5Sset_none succeeded");
     }
 
     /* create a memory dataspace independently */
     mem_dataspace = H5Screate_simple (RANK, dims, NULL);
-    VRFY((mem_dataspace >= 0), "");
-    if(mpi_rank != 0) {
+    VRFY_G((mem_dataspace >= 0), "");
+    if(mpi_rank_g != 0) {
         ret = H5Sselect_none(mem_dataspace);
-        VRFY((ret >= 0), "H5Sset_none succeeded");
+        VRFY_G((ret >= 0), "H5Sset_none succeeded");
     }
 
     /* fill dataset with test data */
@@ -992,20 +991,20 @@ dataset_big_read(void)
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "");
+    VRFY_G((xfer_plist >= 0), "");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((ret >= 0), "H5Pcreate xfer succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     /* read data collectively */
     ret = H5Dread(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                   xfer_plist, rdata);
-    VRFY((ret >= 0), "H5Dread dataset3 succeeded");
+    VRFY_G((ret >= 0), "H5Dread dataset3 succeeded");
 
-    if(mpi_rank == 0) {
+    if(mpi_rank_g == 0) {
         /* verify the read data with original expected data */
         ret = verify_data(start, count, stride, block, rdata, wdata);
         if(ret) {HDfprintf(stderr, "verify failed\n"); exit(1);}
@@ -1016,15 +1015,15 @@ dataset_big_read(void)
     H5Sclose(mem_dataspace);
     H5Pclose(xfer_plist);
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("\nRead Testing Dataset4 with Point selection\n");
     dataset = H5Dopen2(fid, DATASET4, H5P_DEFAULT);
-    VRFY((dataset >= 0), "H5Dopen2 succeeded");
+    VRFY_G((dataset >= 0), "H5Dopen2 succeeded");
 
     dims[0] = bigcount;
-    dims[1] = (hsize_t)(mpi_size * 4);
+    dims[1] = (hsize_t)(mpi_size_g * 4);
 
     block[0] = dims[0]/2;
     block[1] = 2;
@@ -1033,7 +1032,7 @@ dataset_big_read(void)
     count[0] = 1;
     count[1] = 1;
     start[0] = 0;
-    start[1] = dims[1]/(hsize_t)mpi_size * (hsize_t)mpi_rank;
+    start[1] = dims[1]/(hsize_t)mpi_size_g * (hsize_t)mpi_rank_g;
 
     fill_datasets(start, block, wdata);
     MESG("data_array initialized");
@@ -1045,14 +1044,14 @@ dataset_big_read(void)
     num_points = bigcount;
 
     coords = (hsize_t *)HDmalloc(num_points * RANK * sizeof(hsize_t));
-    VRFY((coords != NULL), "coords malloc succeeded");
+    VRFY_G((coords != NULL), "coords malloc succeeded");
 
     set_coords (start, count, stride, block, num_points, coords, IN_ORDER);
     /* create a file dataspace */
     file_dataspace = H5Dget_space (dataset);
-    VRFY((file_dataspace >= 0), "H5Dget_space succeeded");
+    VRFY_G((file_dataspace >= 0), "H5Dget_space succeeded");
     ret = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
-    VRFY((ret >= 0), "H5Sselect_elements succeeded");
+    VRFY_G((ret >= 0), "H5Sselect_elements succeeded");
 
     if(coords) HDfree(coords);
 
@@ -1062,22 +1061,22 @@ dataset_big_read(void)
      * appears to cause problems with 32 bit compilers.
      */
     mem_dataspace = H5Screate_simple (1, dims, NULL);
-    VRFY((mem_dataspace >= 0), "");
+    VRFY_G((mem_dataspace >= 0), "");
 
     /* set up the collective transfer properties list */
     xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-    VRFY((xfer_plist >= 0), "");
+    VRFY_G((xfer_plist >= 0), "");
     ret = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-    VRFY((ret >= 0), "H5Pcreate xfer succeeded");
+    VRFY_G((ret >= 0), "H5Pcreate xfer succeeded");
     if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
         ret = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-        VRFY((ret>= 0),"set independent IO collectively succeeded");
+        VRFY_G((ret>= 0),"set independent IO collectively succeeded");
     }
 
     /* read data collectively */
     ret = H5Dread(dataset, H5T_NATIVE_LLONG, mem_dataspace, file_dataspace,
                   xfer_plist, rdata);
-    VRFY((ret >= 0), "H5Dread dataset1 succeeded");
+    VRFY_G((ret >= 0), "H5Dread dataset1 succeeded");
 
     ret = verify_data(start, count, stride, block, rdata, wdata);
     if(ret) {HDfprintf(stderr, "verify failed\n"); exit(1);}
@@ -1087,7 +1086,7 @@ dataset_big_read(void)
     H5Sclose(mem_dataspace);
     H5Pclose(xfer_plist);
     ret = H5Dclose(dataset);
-    VRFY((ret >= 0), "H5Dclose1 succeeded");
+    VRFY_G((ret >= 0), "H5Dclose1 succeeded");
 
     HDfree(wdata);
     HDfree(rdata);
@@ -1108,7 +1107,7 @@ dataset_big_read(void)
     if (xfer_plist != -1) H5Pclose(xfer_plist);
     if (dataset != -1) {
         ret = H5Dclose(dataset);
-        VRFY((ret >= 0), "H5Dclose1 succeeded");
+        VRFY_G((ret >= 0), "H5Dclose1 succeeded");
     }
     H5Fclose(fid);
 
@@ -1121,10 +1120,10 @@ dataset_big_read(void)
 static void
 single_rank_independent_io(void)
 {
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("single_rank_independent_io\n");
 
-    if (MAINPROCESS) {
+    if (MAIN_PROCESS) {
         hsize_t dims[] = { LARGE_DIM };
         hid_t file_id = -1;
         hid_t fapl_id = -1;
@@ -1134,14 +1133,14 @@ single_rank_independent_io(void)
         void *data = NULL;
 
         fapl_id = H5Pcreate(H5P_FILE_ACCESS);
-	VRFY((fapl_id >= 0), "H5P_FILE_ACCESS");
+	    VRFY_G((fapl_id >= 0), "H5P_FILE_ACCESS");
 
         H5Pset_fapl_mpio(fapl_id, MPI_COMM_SELF, MPI_INFO_NULL);
         file_id = H5Fcreate(FILENAME[1], H5F_ACC_TRUNC, H5P_DEFAULT, fapl_id);
-        VRFY((file_id >= 0), "H5Dcreate2 succeeded");
+        VRFY_G((file_id >= 0), "H5Dcreate2 succeeded");
 
         fspace_id = H5Screate_simple(1, dims, NULL);
-        VRFY((fspace_id >= 0), "H5Screate_simple fspace_id succeeded");
+        VRFY_G((fspace_id >= 0), "H5Screate_simple fspace_id succeeded");
 
         /*
          * Create and write to a >2GB dataset from a single rank.
@@ -1149,18 +1148,18 @@ single_rank_independent_io(void)
         dset_id = H5Dcreate2(file_id, "test_dset", H5T_NATIVE_INT, fspace_id,
                   H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
 
-        VRFY((dset_id >= 0), "H5Dcreate2 succeeded");
+        VRFY_G((dset_id >= 0), "H5Dcreate2 succeeded");
 
         data = malloc(LARGE_DIM * sizeof(int));
 
-        if (mpi_rank == 0)
+        if (mpi_rank_g == 0)
             H5Sselect_all(fspace_id);
         else
             H5Sselect_none(fspace_id);
 
         dims[0] = LARGE_DIM;
         mspace_id = H5Screate_simple(1, dims, NULL);
-        VRFY((mspace_id >= 0), "H5Screate_simple mspace_id succeeded");
+        VRFY_G((mspace_id >= 0), "H5Screate_simple mspace_id succeeded");
         H5Dwrite(dset_id, H5T_NATIVE_INT, mspace_id, fspace_id, H5P_DEFAULT, data);
 
         free(data);
@@ -1190,7 +1189,7 @@ create_faccess_plist(MPI_Comm comm, MPI_Info info, int l_facc_type)
     MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
 
     ret_pl = H5Pcreate (H5P_FILE_ACCESS);
-    VRFY((ret_pl >= 0), "H5P_FILE_ACCESS");
+    VRFY_G((ret_pl >= 0), "H5P_FILE_ACCESS");
 
     if (l_facc_type == FACC_DEFAULT)
     return (ret_pl);
@@ -1198,11 +1197,11 @@ create_faccess_plist(MPI_Comm comm, MPI_Info info, int l_facc_type)
     if (l_facc_type == FACC_MPIO){
     /* set Parallel access with communicator */
     ret = H5Pset_fapl_mpio(ret_pl, comm, info);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
         ret = H5Pset_all_coll_metadata_ops(ret_pl, TRUE);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
         ret = H5Pset_coll_metadata_write(ret_pl, TRUE);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
     return(ret_pl);
     }
 
@@ -1210,17 +1209,17 @@ create_faccess_plist(MPI_Comm comm, MPI_Info info, int l_facc_type)
     hid_t mpio_pl;
 
     mpio_pl = H5Pcreate (H5P_FILE_ACCESS);
-    VRFY((mpio_pl >= 0), "");
+    VRFY_G((mpio_pl >= 0), "");
     /* set Parallel access with communicator */
     ret = H5Pset_fapl_mpio(mpio_pl, comm, info);
-    VRFY((ret >= 0), "");
+    VRFY_G((ret >= 0), "");
 
     /* setup file access template */
     ret_pl = H5Pcreate (H5P_FILE_ACCESS);
-    VRFY((ret_pl >= 0), "");
+    VRFY_G((ret_pl >= 0), "");
     /* set Parallel access with communicator */
     ret = H5Pset_fapl_split(ret_pl, ".meta", mpio_pl, ".raw", mpio_pl);
-    VRFY((ret >= 0), "H5Pset_fapl_split succeeded");
+    VRFY_G((ret >= 0), "H5Pset_fapl_split succeeded");
     H5Pclose(mpio_pl);
     return(ret_pl);
     }
@@ -1269,7 +1268,7 @@ void
 coll_chunk1(void)
 {
     const char *filename = FILENAME[0];
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("coll_chunk1\n");
 
     coll_chunktest(filename, 1, BYROW_CONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
@@ -1323,7 +1322,7 @@ void
 coll_chunk2(void)
 {
     const char *filename = FILENAME[0];
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("coll_chunk2\n");
 
     coll_chunktest(filename, 1, BYROW_DISCONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
@@ -1378,18 +1377,18 @@ void
 coll_chunk3(void)
 {
     const char *filename = FILENAME[0];
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDprintf("coll_chunk3\n");
 
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, HYPER, POINT, OUT_OF_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, ALL, OUT_OF_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, POINT, OUT_OF_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, HYPER, OUT_OF_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, HYPER, HYPER, OUT_OF_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, HYPER, POINT, OUT_OF_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, ALL, OUT_OF_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, POINT, OUT_OF_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, HYPER, OUT_OF_ORDER);
 
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, ALL, IN_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, POINT, IN_ORDER);
-    coll_chunktest(filename, mpi_size, BYROW_CONT, API_NONE, POINT, HYPER, IN_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, ALL, IN_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, POINT, IN_ORDER);
+    coll_chunktest(filename, mpi_size_g, BYROW_CONT, API_NONE, POINT, HYPER, IN_ORDER);
 }
 
 
@@ -1454,29 +1453,29 @@ coll_chunktest(const char* filename,
   /* Create the data space */
 
   acc_plist = create_faccess_plist(comm,info,facc_type);
-  VRFY((acc_plist >= 0),"");
+  VRFY_G((acc_plist >= 0),"");
 
   file = H5Fcreate(filename,H5F_ACC_TRUNC,H5P_DEFAULT,acc_plist);
-  VRFY((file >= 0),"H5Fcreate succeeded");
+  VRFY_G((file >= 0),"H5Fcreate succeeded");
 
   status = H5Pclose(acc_plist);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
   /* setup dimensionality object */
-  dims[0] = space_dim1*(hsize_t)mpi_size;
+  dims[0] = space_dim1*(hsize_t)mpi_size_g;
   dims[1] = space_dim2;
 
   /* allocate memory for data buffer */
   data_array1 = (int *)HDmalloc(dims[0] * dims[1] * sizeof(int));
-  VRFY((data_array1 != NULL), "data_array1 malloc succeeded");
+  VRFY_G((data_array1 != NULL), "data_array1 malloc succeeded");
 
   /* set up dimensions of the slab this process accesses */
-  ccslab_set(mpi_rank, mpi_size, start, count, stride, block, select_factor);
+  ccslab_set(mpi_rank_g, mpi_size_g, start, count, stride, block, select_factor);
 
   /* set up the coords array selection */
   num_points = block[0] * block[1] * count[0] * count[1];
   coords = (hsize_t *)HDmalloc(num_points * RANK * sizeof(hsize_t));
-  VRFY((coords != NULL), "coords malloc succeeded");
+  VRFY_G((coords != NULL), "coords malloc succeeded");
   point_set(start, count, stride, block, num_points, coords, mode);
 
   /* Warning: H5Screate_simple requires an array of hsize_t elements
@@ -1484,21 +1483,21 @@ coll_chunktest(const char* filename,
    * appears to cause problems with 32 bit compilers.
    */
   file_dataspace = H5Screate_simple(2, dims, NULL);
-  VRFY((file_dataspace >= 0), "file dataspace created succeeded");
+  VRFY_G((file_dataspace >= 0), "file dataspace created succeeded");
 
   if(ALL != mem_selection) {
       mem_dataspace = H5Screate_simple(2, dims, NULL);
-      VRFY((mem_dataspace >= 0), "mem dataspace created succeeded");
+      VRFY_G((mem_dataspace >= 0), "mem dataspace created succeeded");
   }
   else {
       /* Putting the warning about H5Screate_simple (above) into practice... */
       hsize_t dsdims[1] = {num_points};
       mem_dataspace = H5Screate_simple (1, dsdims, NULL);
-      VRFY((mem_dataspace >= 0), "mem_dataspace create succeeded");
+      VRFY_G((mem_dataspace >= 0), "mem_dataspace create succeeded");
   }
 
   crp_plist = H5Pcreate(H5P_DATASET_CREATE);
-  VRFY((crp_plist >= 0),"");
+  VRFY_G((crp_plist >= 0),"");
 
   /* Set up chunk information.  */
   chunk_dims[0] = dims[0]/(hsize_t)chunk_factor;
@@ -1506,14 +1505,14 @@ coll_chunktest(const char* filename,
   /* to decrease the testing time, maintain bigger chunk size */
   (chunk_factor == 1) ? (chunk_dims[1] = space_dim2) : (chunk_dims[1] = space_dim2/2);
   status = H5Pset_chunk(crp_plist, 2, chunk_dims);
-  VRFY((status >= 0),"chunk creation property list succeeded");
+  VRFY_G((status >= 0),"chunk creation property list succeeded");
 
   dataset = H5Dcreate2(file, DSET_COLLECTIVE_CHUNK_NAME, H5T_NATIVE_INT,
                        file_dataspace, H5P_DEFAULT, crp_plist, H5P_DEFAULT);
-  VRFY((dataset >= 0),"dataset created succeeded");
+  VRFY_G((dataset >= 0),"dataset created succeeded");
 
   status = H5Pclose(crp_plist);
-  VRFY((status >= 0), "");
+  VRFY_G((status >= 0), "");
 
   /*put some trivial data in the data array */
   ccdataset_fill(start, stride, count,block, data_array1, mem_selection);
@@ -1523,93 +1522,93 @@ coll_chunktest(const char* filename,
   switch (file_selection) {
       case HYPER:
           status = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-          VRFY((status >= 0),"hyperslab selection succeeded");
+          VRFY_G((status >= 0),"hyperslab selection succeeded");
           break;
 
       case POINT:
           if (num_points) {
               status = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
-              VRFY((status >= 0),"Element selection succeeded");
+              VRFY_G((status >= 0),"Element selection succeeded");
           }
           else {
               status = H5Sselect_none(file_dataspace);
-              VRFY((status >= 0),"none selection succeeded");
+              VRFY_G((status >= 0),"none selection succeeded");
           }
           break;
 
       case ALL:
           status = H5Sselect_all(file_dataspace);
-          VRFY((status >= 0), "H5Sselect_all succeeded");
+          VRFY_G((status >= 0), "H5Sselect_all succeeded");
           break;
   }
 
   switch (mem_selection) {
       case HYPER:
           status = H5Sselect_hyperslab(mem_dataspace, H5S_SELECT_SET, start, stride, count, block);
-          VRFY((status >= 0),"hyperslab selection succeeded");
+          VRFY_G((status >= 0),"hyperslab selection succeeded");
           break;
 
       case POINT:
           if (num_points) {
               status = H5Sselect_elements(mem_dataspace, H5S_SELECT_SET, num_points, coords);
-              VRFY((status >= 0),"Element selection succeeded");
+              VRFY_G((status >= 0),"Element selection succeeded");
           }
           else {
               status = H5Sselect_none(mem_dataspace);
-              VRFY((status >= 0),"none selection succeeded");
+              VRFY_G((status >= 0),"none selection succeeded");
           }
           break;
 
       case ALL:
           status = H5Sselect_all(mem_dataspace);
-          VRFY((status >= 0), "H5Sselect_all succeeded");
+          VRFY_G((status >= 0), "H5Sselect_all succeeded");
           break;
   }
 
   /* set up the collective transfer property list */
   xfer_plist = H5Pcreate(H5P_DATASET_XFER);
-  VRFY((xfer_plist >= 0), "");
+  VRFY_G((xfer_plist >= 0), "");
 
   status = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-  VRFY((status>= 0),"MPIO collective transfer property succeeded");
+  VRFY_G((status>= 0),"MPIO collective transfer property succeeded");
   if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
      status = H5Pset_dxpl_mpio_collective_opt(xfer_plist, H5FD_MPIO_INDIVIDUAL_IO);
-     VRFY((status>= 0),"set independent IO collectively succeeded");
+     VRFY_G((status>= 0),"set independent IO collectively succeeded");
   }
 
   switch(api_option){
     case API_LINK_HARD:
     status = H5Pset_dxpl_mpio_chunk_opt(xfer_plist,H5FD_MPIO_CHUNK_ONE_IO);
-           VRFY((status>= 0),"collective chunk optimization succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization succeeded");
            break;
 
     case API_MULTI_HARD:
     status = H5Pset_dxpl_mpio_chunk_opt(xfer_plist,H5FD_MPIO_CHUNK_MULTI_IO);
-    VRFY((status>= 0),"collective chunk optimization succeeded ");
+    VRFY_G((status>= 0),"collective chunk optimization succeeded ");
            break;
 
     case API_LINK_TRUE:
            status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,2);
-    VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
+    VRFY_G((status>= 0),"collective chunk optimization set chunk number succeeded");
            break;
 
     case API_LINK_FALSE:
            status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,6);
-           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization set chunk number succeeded");
            break;
 
     case API_MULTI_COLL:
            status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,8);/* make sure it is using multi-chunk IO */
-           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization set chunk number succeeded");
     status = H5Pset_dxpl_mpio_chunk_opt_ratio(xfer_plist,50);
-           VRFY((status>= 0),"collective chunk optimization set chunk ratio succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization set chunk ratio succeeded");
            break;
 
     case API_MULTI_IND:
            status = H5Pset_dxpl_mpio_chunk_opt_num(xfer_plist,8);/* make sure it is using multi-chunk IO */
-           VRFY((status>= 0),"collective chunk optimization set chunk number succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization set chunk number succeeded");
     status = H5Pset_dxpl_mpio_chunk_opt_ratio(xfer_plist,100);
-           VRFY((status>= 0),"collective chunk optimization set chunk ratio succeeded");
+           VRFY_G((status>= 0),"collective chunk optimization set chunk ratio succeeded");
            break;
 
     default:
@@ -1623,42 +1622,42 @@ coll_chunktest(const char* filename,
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_HARD_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             case API_MULTI_HARD:
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_HARD_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             case API_LINK_TRUE:
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_NUM_TRUE_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             case API_LINK_FALSE:
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_LINK_NUM_FALSE_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             case API_MULTI_COLL:
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_RATIO_COLL_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             case API_MULTI_IND:
                prop_value = H5D_XFER_COLL_CHUNK_DEF;
                status = H5Pinsert2(xfer_plist, H5D_XFER_COLL_CHUNK_MULTI_RATIO_IND_NAME, H5D_XFER_COLL_CHUNK_SIZE, &prop_value,
                            NULL, NULL, NULL, NULL, NULL, NULL);
-               VRFY((status >= 0),"testing property list inserted succeeded");
+               VRFY_G((status >= 0),"testing property list inserted succeeded");
                break;
 
             default:
@@ -1670,45 +1669,45 @@ coll_chunktest(const char* filename,
   /* write data collectively */
   status = H5Dwrite(dataset, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
             xfer_plist, data_array1);
-  VRFY((status >= 0),"dataset write succeeded");
+  VRFY_G((status >= 0),"dataset write succeeded");
 
 #ifdef H5_HAVE_INSTRUMENTED_LIBRARY
   if(facc_type == FACC_MPIO) {
       switch(api_option){
             case API_LINK_HARD:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_HARD_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set LINK COLLECTIVE IO directly succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set LINK COLLECTIVE IO directly succeeded");
                break;
 
             case API_MULTI_HARD:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_HARD_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO optimization succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO optimization succeeded");
                break;
 
             case API_LINK_TRUE:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_NUM_TRUE_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set LINK COLLECTIVE IO succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set LINK COLLECTIVE IO succeeded");
                break;
 
             case API_LINK_FALSE:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_LINK_NUM_FALSE_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set LINK IO transferring to multi-chunk IO succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set LINK IO transferring to multi-chunk IO succeeded");
                break;
 
             case API_MULTI_COLL:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_RATIO_COLL_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO with optimization succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set MULTI-CHUNK COLLECTIVE IO with optimization succeeded");
                break;
 
             case API_MULTI_IND:
                status = H5Pget(xfer_plist,H5D_XFER_COLL_CHUNK_MULTI_RATIO_IND_NAME,&prop_value);
-               VRFY((status >= 0),"testing property list get succeeded");
-               VRFY((prop_value == 0),"API to set MULTI-CHUNK IO transferring to independent IO  succeeded");
+               VRFY_G((status >= 0),"testing property list get succeeded");
+               VRFY_G((prop_value == 0),"API to set MULTI-CHUNK IO transferring to independent IO  succeeded");
                break;
 
             default:
@@ -1718,20 +1717,20 @@ coll_chunktest(const char* filename,
 #endif
 
   status = H5Dclose(dataset);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
   status = H5Pclose(xfer_plist);
-  VRFY((status >= 0),"property list closed");
+  VRFY_G((status >= 0),"property list closed");
 
   status = H5Sclose(file_dataspace);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
   status = H5Sclose(mem_dataspace);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
 
   status = H5Fclose(file);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
   if (data_array1) HDfree(data_array1);
 
@@ -1739,35 +1738,35 @@ coll_chunktest(const char* filename,
 
   /* allocate memory for data buffer */
   data_array1 = (int *)HDmalloc(dims[0]*dims[1]*sizeof(int));
-  VRFY((data_array1 != NULL), "data_array1 malloc succeeded");
+  VRFY_G((data_array1 != NULL), "data_array1 malloc succeeded");
 
   /* allocate memory for data buffer */
   data_origin1 = (int *)HDmalloc(dims[0]*dims[1]*sizeof(int));
-  VRFY((data_origin1 != NULL), "data_origin1 malloc succeeded");
+  VRFY_G((data_origin1 != NULL), "data_origin1 malloc succeeded");
 
   acc_plist = create_faccess_plist(comm, info, facc_type);
-  VRFY((acc_plist >= 0),"MPIO creation property list succeeded");
+  VRFY_G((acc_plist >= 0),"MPIO creation property list succeeded");
 
   file = H5Fopen(FILENAME[0],H5F_ACC_RDONLY,acc_plist);
-  VRFY((file >= 0),"H5Fcreate succeeded");
+  VRFY_G((file >= 0),"H5Fcreate succeeded");
 
   status = H5Pclose(acc_plist);
-  VRFY((status >= 0),"");
+  VRFY_G((status >= 0),"");
 
   /* open the collective dataset*/
   dataset = H5Dopen2(file, DSET_COLLECTIVE_CHUNK_NAME, H5P_DEFAULT);
-  VRFY((dataset >= 0), "");
+  VRFY_G((dataset >= 0), "");
 
   /* set up dimensions of the slab this process accesses */
-  ccslab_set(mpi_rank, mpi_size, start, count, stride, block, select_factor);
+  ccslab_set(mpi_rank_g, mpi_size_g, start, count, stride, block, select_factor);
 
   /* obtain the file and mem dataspace*/
   file_dataspace = H5Dget_space (dataset);
-  VRFY((file_dataspace >= 0), "");
+  VRFY_G((file_dataspace >= 0), "");
 
   if (ALL != mem_selection) {
       mem_dataspace = H5Dget_space (dataset);
-      VRFY((mem_dataspace >= 0), "");
+      VRFY_G((mem_dataspace >= 0), "");
   }
   else {
       /* Warning: H5Screate_simple requires an array of hsize_t elements
@@ -1776,92 +1775,92 @@ coll_chunktest(const char* filename,
        */
       hsize_t dsdims[1] = {num_points};
       mem_dataspace = H5Screate_simple (1, dsdims, NULL);
-      VRFY((mem_dataspace >= 0), "mem_dataspace create succeeded");
+      VRFY_G((mem_dataspace >= 0), "mem_dataspace create succeeded");
   }
 
   switch (file_selection) {
       case HYPER:
           status = H5Sselect_hyperslab(file_dataspace, H5S_SELECT_SET, start, stride, count, block);
-          VRFY((status >= 0),"hyperslab selection succeeded");
+          VRFY_G((status >= 0),"hyperslab selection succeeded");
           break;
 
       case POINT:
           if (num_points) {
               status = H5Sselect_elements(file_dataspace, H5S_SELECT_SET, num_points, coords);
-              VRFY((status >= 0),"Element selection succeeded");
+              VRFY_G((status >= 0),"Element selection succeeded");
           }
           else {
               status = H5Sselect_none(file_dataspace);
-              VRFY((status >= 0),"none selection succeeded");
+              VRFY_G((status >= 0),"none selection succeeded");
           }
           break;
 
       case ALL:
           status = H5Sselect_all(file_dataspace);
-          VRFY((status >= 0), "H5Sselect_all succeeded");
+          VRFY_G((status >= 0), "H5Sselect_all succeeded");
           break;
   }
 
   switch (mem_selection) {
       case HYPER:
           status = H5Sselect_hyperslab(mem_dataspace, H5S_SELECT_SET, start, stride, count, block);
-          VRFY((status >= 0),"hyperslab selection succeeded");
+          VRFY_G((status >= 0),"hyperslab selection succeeded");
           break;
 
       case POINT:
           if (num_points) {
               status = H5Sselect_elements(mem_dataspace, H5S_SELECT_SET, num_points, coords);
-              VRFY((status >= 0),"Element selection succeeded");
+              VRFY_G((status >= 0),"Element selection succeeded");
           }
           else {
               status = H5Sselect_none(mem_dataspace);
-              VRFY((status >= 0),"none selection succeeded");
+              VRFY_G((status >= 0),"none selection succeeded");
           }
           break;
 
       case ALL:
           status = H5Sselect_all(mem_dataspace);
-          VRFY((status >= 0), "H5Sselect_all succeeded");
+          VRFY_G((status >= 0), "H5Sselect_all succeeded");
           break;
   }
 
   /* fill dataset with test data */
   ccdataset_fill(start, stride,count,block, data_origin1, mem_selection);
   xfer_plist = H5Pcreate (H5P_DATASET_XFER);
-  VRFY((xfer_plist >= 0),"");
+  VRFY_G((xfer_plist >= 0),"");
 
   status = H5Pset_dxpl_mpio(xfer_plist, H5FD_MPIO_COLLECTIVE);
-  VRFY((status>= 0),"MPIO collective transfer property succeeded");
+  VRFY_G((status>= 0),"MPIO collective transfer property succeeded");
   if(dxfer_coll_type == DXFER_INDEPENDENT_IO) {
      status = H5Pset_dxpl_mpio_collective_opt(xfer_plist,H5FD_MPIO_INDIVIDUAL_IO);
-     VRFY((status>= 0),"set independent IO collectively succeeded");
+     VRFY_G((status>= 0),"set independent IO collectively succeeded");
   }
 
   status = H5Dread(dataset, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
                    xfer_plist, data_array1);
-  VRFY((status >=0),"dataset read succeeded");
+  VRFY_G((status >=0),"dataset read succeeded");
 
   /* verify the read data with original expected data */
   status = ccdataset_vrfy(start, count, stride, block, data_array1, data_origin1, mem_selection);
   if (status) nerrors++;
 
   status = H5Pclose(xfer_plist);
-  VRFY((status >= 0),"property list closed");
+  VRFY_G((status >= 0),"property list closed");
 
   /* close dataset collectively */
   status=H5Dclose(dataset);
-  VRFY((status >= 0), "H5Dclose");
+  VRFY_G((status >= 0), "H5Dclose");
 
   /* release all IDs created */
   status = H5Sclose(file_dataspace);
-  VRFY((status >= 0),"H5Sclose");
+  VRFY_G((status >= 0),"H5Sclose");
 
   status = H5Sclose(mem_dataspace);
-  VRFY((status >= 0),"H5Sclose");
+  VRFY_G((status >= 0),"H5Sclose");
 
   /* close the file collectively */
   status = H5Fclose(file);
-  VRFY((status >= 0),"H5Fclose");
+  VRFY_G((status >= 0),"H5Fclose");
 
   /* release data buffers */
   if(coords) HDfree(coords);
@@ -1939,8 +1938,8 @@ int main(int argc, char **argv)
     }
 
     MPI_Init(&argc, &argv);
-    MPI_Comm_size(MPI_COMM_WORLD,&mpi_size);
-    MPI_Comm_rank(MPI_COMM_WORLD,&mpi_rank);
+    MPI_Comm_size(MPI_COMM_WORLD,&mpi_size_g);
+    MPI_Comm_rank(MPI_COMM_WORLD,&mpi_rank_g);
 
     /* Attempt to turn off atexit post processing so that in case errors
      * happen during the test and the process is aborted, it will not get
@@ -1954,7 +1953,7 @@ int main(int argc, char **argv)
     /* set alarm. */
     ALARM_ON;
 
-    ExpressMode = do_express_test(mpi_rank);
+    ExpressMode = do_express_test(mpi_rank_g);
 
     dataset_big_write();
     MPI_Barrier(MPI_COMM_WORLD);
@@ -1963,7 +1962,7 @@ int main(int argc, char **argv)
     MPI_Barrier(MPI_COMM_WORLD);
 
     if (ExpressMode > 0) {
-      if (mpi_rank == 0)
+      if (mpi_rank_g == 0)
           HDprintf("***Express test mode on.  Several tests are skipped\n");
     }
     else {
@@ -1979,7 +1978,7 @@ int main(int argc, char **argv)
     /* turn off alarm */
     ALARM_OFF;
 
-    if (mpi_rank == 0)
+    if (mpi_rank_g == 0)
         HDremove(FILENAME[0]);
 
     /* close HDF5 library */
diff --git a/testpar/t_chunk_alloc.c b/testpar/t_chunk_alloc.c
index e6df2d8..e716f41 100644
--- a/testpar/t_chunk_alloc.c
+++ b/testpar/t_chunk_alloc.c
@@ -385,18 +385,18 @@ verify_data(const char *filename, int chunk_factor, write_type write_pattern, in
 
         /* set expected value according the write pattern */
         switch (write_pattern) {
-        case all:
-            value = i%mpi_size + 1;
-            break;
-        case none:
-            value = 0;
-            break;
-        case sec_last:
-            if (i==nchunks-2)
-                value = 100;
-            else
+            case all:
+                value = i%mpi_size + 1;
+                break;
+            case none:
                 value = 0;
                 break;
+            case sec_last:
+                if (i==nchunks-2)
+                    value = 100;
+                else
+                    value = 0;
+                break;
             default:
                 HDassert(0);
         }
diff --git a/testpar/t_mdset.c b/testpar/t_mdset.c
index 6cdb0af7..db0d059 100644
--- a/testpar/t_mdset.c
+++ b/testpar/t_mdset.c
@@ -235,6 +235,9 @@ void compact_dataset(void)
     char    dname[]="dataset";
     herr_t  ret;
     const char *filename;
+#ifdef H5_HAVE_INSTRUMENTED_LIBRARY
+    hbool_t prop_value;
+#endif
 
     size = get_size();
 
@@ -314,7 +317,6 @@ void compact_dataset(void)
     VRFY((dataset >= 0), "H5Dopen2 succeeded");
 
 #ifdef H5_HAVE_INSTRUMENTED_LIBRARY
-    hbool_t prop_value;
     prop_value = H5D_XFER_COLL_RANK0_BCAST_DEF;
     ret = H5Pinsert2(dxpl, H5D_XFER_COLL_RANK0_BCAST_NAME, H5D_XFER_COLL_RANK0_BCAST_SIZE, &prop_value,
                      NULL, NULL, NULL, NULL, NULL, NULL);
@@ -620,6 +622,9 @@ void dataset_fillvalue(void)
     int acc, i, ii, j, k, l;    /* Local index variables */
     herr_t ret;                 /* Generic return value */
     const char *filename;
+#ifdef H5_HAVE_INSTRUMENTED_LIBRARY
+    hbool_t prop_value;
+#endif
 
     MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
     MPI_Comm_size(MPI_COMM_WORLD, &mpi_size);
@@ -664,7 +669,6 @@ void dataset_fillvalue(void)
     VRFY((dxpl >= 0), "H5Pcreate succeeded");
 
 #ifdef H5_HAVE_INSTRUMENTED_LIBRARY
-      hbool_t prop_value;
       prop_value = H5D_XFER_COLL_RANK0_BCAST_DEF;
       ret = H5Pinsert2(dxpl, H5D_XFER_COLL_RANK0_BCAST_NAME, H5D_XFER_COLL_RANK0_BCAST_SIZE, &prop_value,
                    NULL, NULL, NULL, NULL, NULL, NULL);
diff --git a/testpar/t_prestart.c b/testpar/t_prestart.c
index fc9d475..cf974e8 100644
--- a/testpar/t_prestart.c
+++ b/testpar/t_prestart.c
@@ -34,8 +34,8 @@ main (int argc, char **argv)
     hid_t       file_id, dset_id, grp_id;
     hid_t       fapl, sid, mem_dataspace;
     herr_t      ret;
-    char	filename[1024];
-    int         mpi_size, mpi_rank, ndims, i, j;
+    char	    filename[1024];
+    int         mpi_size, mpi_rank, ndims;
     MPI_Comm    comm  = MPI_COMM_WORLD;
     MPI_Info    info  = MPI_INFO_NULL;
     hsize_t     dims[RANK];
@@ -43,6 +43,7 @@ main (int argc, char **argv)
     hsize_t     count[RANK];
     hsize_t     stride[RANK];
     hsize_t     block[RANK];
+    hsize_t     i, j;
     DATATYPE   *data_array = NULL, *dataptr;	/* data buffer */
 
     MPI_Init(&argc, &argv);
@@ -73,8 +74,8 @@ main (int argc, char **argv)
 
     ndims = H5Sget_simple_extent_dims(sid, dims, NULL);
     VRFY((ndims == 2), "H5Sget_simple_extent_dims succeeded");
-    VRFY(dims[0] == ROW_FACTOR*mpi_size, "Wrong dataset dimensions");
-    VRFY(dims[1] == COL_FACTOR*mpi_size, "Wrong dataset dimensions");
+    VRFY(dims[0] == (hsize_t)(ROW_FACTOR*mpi_size), "Wrong dataset dimensions");
+    VRFY(dims[1] == (hsize_t)(COL_FACTOR*mpi_size), "Wrong dataset dimensions");
 
     /* allocate memory for data buffer */
     data_array = (DATATYPE *)HDmalloc(dims[0]*dims[1]*sizeof(DATATYPE));
diff --git a/testpar/t_shapesame.c b/testpar/t_shapesame.c
index c12cf5a..34fcc72 100644
--- a/testpar/t_shapesame.c
+++ b/testpar/t_shapesame.c
@@ -397,14 +397,9 @@ hs_dr_pio_test__setup(const int test_num,
          *
          *                                         JRM -- 9/16/10
          */
-        if ( express_test == 0 ) {
 
-            tv_ptr->chunk_dims[0] = 1;
+        tv_ptr->chunk_dims[0] = 1;
 
-        } else {
-
-            tv_ptr->chunk_dims[0] = 1;
-        }
         tv_ptr->chunk_dims[1] = tv_ptr->chunk_dims[2] =
                                 tv_ptr->chunk_dims[3] =
                                 tv_ptr->chunk_dims[4] = (hsize_t)(tv_ptr->chunk_edge_size);
diff --git a/testpar/t_span_tree.c b/testpar/t_span_tree.c
index e1a86a1..fe8a618 100644
--- a/testpar/t_span_tree.c
+++ b/testpar/t_span_tree.c
@@ -223,7 +223,7 @@ void coll_write_test(int chunk_factor)
   hsize_t  chunk_dims[2];
 
   herr_t   ret;
-  unsigned i;
+  int      i;
   int      fillvalue = 0;   /* Fill value for the dataset */
 
   int      *matrix_out = NULL;
@@ -682,7 +682,7 @@ coll_read_test(void)
   hsize_t  block[2];  /* Block sizes */
   herr_t   ret;
 
-  unsigned i;
+  int      i;
 
   int     *matrix_out;
   int     *matrix_out1;     /* Buffer to read from the dataset */
diff --git a/testpar/testpar.h b/testpar/testpar.h
index 86677d1..e3d68e0 100644
--- a/testpar/testpar.h
+++ b/testpar/testpar.h
@@ -44,12 +44,12 @@
  * This will allow program to continue and can be used for debugging.
  * (The "do {...} while(0)" is to group all the statements as one unit.)
  */
-#define VRFY(val, mesg) do {                                            \
+#define VRFY_IMPL(val, mesg, rankvar) do {                                            \
     if (val) {                                                          \
         MESG(mesg);                                                     \
     }                                                                   \
     else {                                                              \
-        HDprintf("Proc %d: ", mpi_rank);                                \
+        HDprintf("Proc %d: ", rankvar);                                \
         HDprintf("*** Parallel ERROR ***\n");                           \
         HDprintf("    VRFY (%s) failed at line %4d in %s\n",            \
                mesg, (int)__LINE__, __FILE__);                          \
@@ -62,6 +62,9 @@
     }                                                                   \
 } while(0)
 
+#define VRFY_G(val, mesg) VRFY_IMPL(val, mesg, mpi_rank_g)
+#define VRFY(val, mesg) VRFY_IMPL(val, mesg, mpi_rank)
+
 /*
  * Checking for information purpose.
  * If val is false, print mesg; else nothing.