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authorAlbert Cheng <acheng@hdfgroup.org>1998-02-12 05:29:10 (GMT)
committerAlbert Cheng <acheng@hdfgroup.org>1998-02-12 05:29:10 (GMT)
commitd1fb56a99ebb65549a5cfad87257f15bdf5ee6a5 (patch)
tree94735e0d57d43af8b45266dd377ac04c9150b869 /test
parent6a457fe64e9573b239be14d5b76101e73b46d5b4 (diff)
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[svn-r260] Initial version of PHDF5 test/example program. Commit this one first
before I destroy it by accident.
Diffstat (limited to 'test')
-rw-r--r--test/testphdf5.c346
1 files changed, 346 insertions, 0 deletions
diff --git a/test/testphdf5.c b/test/testphdf5.c
new file mode 100644
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+
+/* Example of using the parallel HDF5 library to access datasets */
+
+#include <assert.h>
+#include <hdf5.h>
+#include <phdf5.h>
+#include <mpi.h>
+#include <mpio.h>
+
+/* Temporary source code */
+#include <phdf5src.c>
+/* temporary code end */
+
+/* Constants definitions */
+#ifdef HAVE_PARALLEL
+#define FILE1 "ufs:ParaEg1.h5"
+#define FILE2 "ufs:ParaEg2.h5"
+#else
+#define FILE1 "Eg1.h5"
+#define FILE2 "Eg2.h5"
+#endif
+
+/* 24 is a multiple of 2, 3, 4, 6, 8, 12. Neat for parallel tests. */
+#define SPACE1_DIM1 24
+#define SPACE1_DIM2 20
+#define SPACE1_RANK 2
+#define DATASETNAME1 "Data1"
+#define DATASETNAME2 "Data2"
+#define DATASETNAME3 "Data3"
+
+
+/* Example of using the parallel HDF5 library to create a dataset */
+void
+phdf5write()
+{
+ hid_t fid1, fid2; /* HDF5 file IDs */
+ hid_t acc_tpl1; /* File access templates */
+ hid_t sid1,sid2; /* Dataspace ID */
+ hid_t file_dataspace; /* File dataspace ID */
+ hid_t mem_dataspace; /* memory dataspace ID */
+ hid_t dataset1, dataset2; /* Dataset ID */
+ uint32 rank = SPACE1_RANK; /* Logical rank of dataspace */
+ size_t dims1[SPACE1_RANK] = {SPACE1_DIM1,SPACE1_DIM2}; /* dataspace dim sizes */
+ int32 data_array1[SPACE1_DIM1][SPACE1_DIM2]; /* data buffer */
+
+ int start[SPACE1_RANK]; /* for hyperslab setting */
+ size_t count[SPACE1_RANK], stride[SPACE1_RANK]; /* for hyperslab setting */
+
+ herr_t ret; /* Generic return value */
+ int i, j;
+ int numprocs, myid;
+#ifdef HAVE_PARALLEL
+ MPI_Comm comm = MPI_COMM_WORLD;
+ MPI_Info info = MPI_INFO_NULL;
+
+ /* set up MPI parameters */
+ MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
+ MPI_Comm_rank(MPI_COMM_WORLD,&myid);
+#else
+ numprocs = 1;
+ myid = 0;
+#endif
+
+
+ /* setup file access template */
+ acc_tpl1 = H5Ccreate (H5C_FILE_ACCESS);
+ assert(acc_tpl1 != FAIL);
+ MESG("H5Ccreate access succeed");
+#ifdef HAVE_PARALLEL
+ /* set Independent Parallel access with communicator */
+ ret = H5Cset_mpi(acc_tpl1, comm, info, H5ACC_INDEPENDENT);
+ assert(ret != FAIL);
+ MESG("H5Cset_mpi succeed");
+#endif
+
+ /* create the file collectively */
+ fid1=H5Fcreate(FILE1,H5ACC_OVERWRITE,0,acc_tpl1);
+ assert(fid1 != FAIL);
+ MESG("H5Fcreate succeed");
+
+ /* Release file-access template */
+ ret=H5Mclose(acc_tpl1);
+ assert(ret != FAIL);
+
+
+ /* setup dimensionality object */
+ sid1 = H5Pcreate_simple (SPACE1_RANK, dims1, NULL);
+ assert (sid1 != FAIL);
+ MESG("H5Pcreate_simple succeed");
+
+
+ /* create a dataset collectively */
+ dataset1 = H5Dcreate(fid1, DATASETNAME1, H5T_NATIVE_INT, sid1,
+ H5C_DEFAULT);
+ assert(dataset1 != FAIL);
+ MESG("H5Dcreate succeed");
+
+ /* create another dataset collectively */
+ dataset2 = H5Dcreate(fid1, DATASETNAME2, H5T_NATIVE_INT, sid1,
+ H5C_DEFAULT);
+ assert(dataset2 != FAIL);
+ MESG("H5Dcreate succeed");
+
+
+
+ /* set up dimensions of the slab this process accesses */
+ start[0] = myid*SPACE1_DIM1/numprocs;
+ start[1] = 0;
+ count[0] = SPACE1_DIM1/numprocs;
+ count[1] = SPACE1_DIM2;
+ stride[0] = 1;
+ stride[1] =1;
+printf("start[]=(%d,%d), count[]=(%lu,%lu), total datapoints=%lu\n",
+start[0], start[1], count[0], count[1], count[0]*count[1]);
+
+ /* put some trivial data in the data_array */
+ for (i=0; i < count[0]; i++){
+ for (j=0; j < count[1]; j++){
+ data_array1[i][j] = (i+start[0])*100 + (j+1);
+ }
+ }
+ MESG("data_array initialized");
+
+ /* create a file dataspace independently */
+ file_dataspace = H5Dget_space (dataset1);
+ assert(file_dataspace != FAIL);
+ MESG("H5Dget_space succeed");
+ ret=H5Pset_hyperslab(file_dataspace, start, count, stride);
+ assert(ret != FAIL);
+ MESG("H5Pset_hyperslab succeed");
+
+ /* create a memory dataspace independently */
+ mem_dataspace = H5Pcreate_simple (SPACE1_RANK, count, NULL);
+ assert (mem_dataspace != FAIL);
+
+ /* write data independently */
+ ret = H5Dwrite(dataset1, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
+ H5C_DEFAULT, data_array1);
+ assert(ret != FAIL);
+ MESG("H5Dwrite succeed");
+
+ /* write data independently */
+ ret = H5Dwrite(dataset2, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
+ H5C_DEFAULT, data_array1);
+ assert(ret != FAIL);
+ MESG("H5Dwrite succeed");
+
+ /* release dataspace ID */
+ H5Pclose(file_dataspace);
+
+ /* close dataset collectively */
+ ret=H5Dclose(dataset1);
+ assert(ret != FAIL);
+ ret=H5Dclose(dataset2);
+ assert(ret != FAIL);
+
+ /* release all IDs created */
+ H5Mclose(sid1);
+
+ /* close the file collectively */
+ H5Fclose(fid1);
+}
+
+/* Example of using the parallel HDF5 library to read a dataset */
+void
+phdf5read()
+{
+ hid_t fid1, fid2; /* HDF5 file IDs */
+ hid_t acc_tpl1; /* File access templates */
+ hid_t sid1,sid2; /* Dataspace ID */
+ hid_t file_dataspace; /* File dataspace ID */
+ hid_t mem_dataspace; /* memory dataspace ID */
+ hid_t dataset1, dataset2; /* Dataset ID */
+ uint32 rank = SPACE1_RANK; /* Logical rank of dataspace */
+ size_t dims1[] = {SPACE1_DIM1,SPACE1_DIM2}; /* dataspace dim sizes */
+ int32 data_array1[SPACE1_DIM1][SPACE1_DIM2]; /* data buffer */
+
+ int start[SPACE1_RANK]; /* for hyperslab setting */
+ size_t count[SPACE1_RANK], stride[SPACE1_RANK]; /* for hyperslab setting */
+
+ herr_t ret; /* Generic return value */
+ intn i, j;
+ int numprocs, myid;
+#ifdef HAVE_PARALLEL
+ MPI_Comm comm = MPI_COMM_WORLD;
+ MPI_Info info = MPI_INFO_NULL;
+
+ /* set up MPI parameters */
+ MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
+ MPI_Comm_rank(MPI_COMM_WORLD,&myid);
+#else
+ numprocs = 1;
+ myid = 0;
+#endif
+
+
+ /* setup file access template */
+ acc_tpl1 = H5Ccreate (H5C_FILE_ACCESS);
+ assert(acc_tpl1 != FAIL);
+#ifdef HAVE_PARALLEL
+ /* set Independent Parallel access with communicator */
+ ret = H5Cset_mpi(acc_tpl1, comm, info, H5ACC_INDEPENDENT);
+ assert(ret != FAIL);
+#endif
+
+
+ /* open the file collectively */
+ fid1=H5Fopen(FILE1,H5ACC_WRITE,acc_tpl1);
+ assert(fid1 != FAIL);
+
+ /* Release file-access template */
+ ret=H5Mclose(acc_tpl1);
+ assert(ret != FAIL);
+
+ /* open the dataset1 collectively */
+ dataset1 = H5Dopen(fid1, DATASETNAME1);
+ assert(dataset1 != FAIL);
+
+ /* open another dataset collectively */
+ dataset2 = H5Dopen(fid1, DATASETNAME1);
+ assert(dataset2 != FAIL);
+
+
+ /* set up dimensions of the slab this process accesses */
+ start[0] = myid*SPACE1_DIM1/numprocs;
+ start[1] = 0;
+ count[0] = SPACE1_DIM1/numprocs;
+ count[1] = SPACE1_DIM2;
+ stride[0] = 1;
+ stride[1] =1;
+printf("start[]=(%d,%d), count[]=(%lu,%lu), total datapoints=%lu\n",
+start[0], start[1], count[0], count[1], count[0]*count[1]);
+
+ /* create a file dataspace independently */
+ file_dataspace = H5Dget_space (dataset1);
+ assert(file_dataspace != FAIL);
+ ret=H5Pset_hyperslab(file_dataspace, start, count, stride);
+ assert(ret != FAIL);
+
+ /* create a memory dataspace independently */
+ mem_dataspace = H5Pcreate_simple (SPACE1_RANK, count, NULL);
+ assert (mem_dataspace != FAIL);
+
+
+
+ /* read data independently */
+ ret = H5Dread(dataset1, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
+ H5C_DEFAULT, data_array1);
+ assert(ret != FAIL);
+
+ /* print the slab read */
+ for (i=0; i < count[0]; i++){
+ printf("Row %d: ", i+start[0]);
+ for (j=0; j < count[1]; j++){
+ printf("%d ", data_array1[i][j]);
+ }
+ printf("\n");
+ }
+
+ /* read data independently */
+ ret = H5Dread(dataset2, H5T_NATIVE_INT, mem_dataspace, file_dataspace,
+ H5C_DEFAULT, data_array1);
+ assert(ret != FAIL);
+
+ /* print the slab read */
+ for (i=0; i < count[0]; i++){
+ printf("Row %d: ", i+start[0]);
+ for (j=0; j < count[1]; j++){
+ printf("%d ", data_array1[i][j]);
+ }
+ printf("\n");
+ }
+
+ /* close dataset collectively */
+ ret=H5Dclose(dataset1);
+ assert(ret != FAIL);
+ ret=H5Dclose(dataset2);
+ assert(ret != FAIL);
+
+ /* release all IDs created */
+ H5Pclose(file_dataspace);
+
+ /* close the file collectively */
+ H5Fclose(fid1);
+}
+
+void
+usage()
+{
+ printf("Usage: testphdf5 [-r] [-w]\n");
+ printf("\t-r\b\bno read\n");
+ printf("\t-w\b\bno write\n");
+ printf("\tdefault do write then read\n");
+ printf("\n");
+}
+
+main(int argc, char **argv)
+{
+ int numprocs, myid, namelen;
+ char processor_name[MPI_MAX_PROCESSOR_NAME];
+ int doread=1; /* read test */
+ int dowrite=1; /* write test */
+
+ void usage();
+#ifdef HAVE_PARALLEL
+ MPI_Init(&argc,&argv);
+ MPI_Comm_size(MPI_COMM_WORLD,&numprocs);
+ MPI_Comm_rank(MPI_COMM_WORLD,&myid);
+ MPI_Get_processor_name(processor_name,&namelen);
+pause_proc(MPI_COMM_WORLD, myid, processor_name, namelen, argc, argv);
+#endif
+
+ /* parse option */
+ while (--argc){
+ if (**(++argv) != '-'){
+ break;
+ }else{
+ switch(*(*argv+1)){
+ case 'r': doread = 0; break;
+ case 'w': dowrite = 0; break;
+ default: usage(); break;
+ }
+ }
+ }
+
+ if (dowrite){
+ MPI_BANNER("testing PHDF5 writing dataset ...");
+ phdf5write();
+ }
+ if (doread){
+ MPI_BANNER("testing PHDF5 reading dataset ...");
+ phdf5read();
+ }
+
+ if (!(dowrite || doread))
+ usage();
+ else
+ MPI_BANNER("PHDF5 tests finished");
+
+#ifdef HAVE_PARALLEL
+ MPI_Finalize();
+#endif
+
+ return(0);
+}
+