diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/tselect.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/test/tselect.c b/test/tselect.c index 9cfa922..808704d 100644 --- a/test/tselect.c +++ b/test/tselect.c @@ -177,6 +177,13 @@ #define SEL_ITER_MAX_SEQ 256 +/* Defines for test_hyper_io_1d() */ +#define DNAME "DSET_1D" +#define RANK 1 +#define NUMCHUNKS 3 +#define CHUNKSZ 20 +#define NUM_ELEMENTS NUMCHUNKS * CHUNKSZ + /* Location comparison function */ static int compare_size_t(const void *s1, const void *s2); @@ -15316,7 +15323,158 @@ test_select_intersect_block(void) CHECK(ret, FAIL, "H5Sclose"); } /* test_select_intersect_block() */ + +/**************************************************************** +** +** test_hyper_io_1d(): +** Test to verify all the selected 10th element in the 1-d file +** dataspace is read correctly into the 1-d contiguous memory space. +** This is modeled after the test scenario described in HDFFV-20585 +** that demonstrated the hyperslab slowness. A fix to speed up +** performance is in place to handle the special case for 1-d disjoint +** file dataspace into 1-d single block contiguous memory space. +** +****************************************************************/ +static void +test_hyper_io_1d(void) +{ + hid_t fid; /* File ID */ + hid_t did; /* Dataset ID */ + hid_t sid, mid; /* Dataspace IDs */ + hid_t dcpl; /* Dataset creation property list ID */ + hsize_t dims[1], maxdims[1], dimsm[1]; /* Dataset dimension sizes */ + hsize_t chunk_dims[1]; /* Chunk dimension size */ + hsize_t offset[1]; /* Starting offset for hyperslab */ + hsize_t stride[1]; /* Distance between blocks in the hyperslab selection */ + hsize_t count[1]; /* # of blocks in the the hyperslab selection */ + hsize_t block[1]; /* Size of block in the hyperslab selection */ + unsigned int wdata[CHUNKSZ]; /* Data to be written */ + unsigned int rdata[NUM_ELEMENTS/10]; /* Data to be read */ + herr_t ret; /* Generic return value */ + unsigned i; /* Local index variable */ + + /* Output message about test being performed */ + MESSAGE(6, ("Testing Hyperslab I/O for 1-d single block memory space\n")); + + for (i = 0; i < CHUNKSZ; i++) + wdata[i] = i; + + /* Create the file file */ + fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + CHECK(fid, FAIL, "H5Fcreate"); + + /* Create file dataspace */ + dims[0] = CHUNKSZ; + maxdims[0] = H5S_UNLIMITED; + sid = H5Screate_simple(RANK, dims, maxdims); + CHECK(sid, FAIL, "H5Pcreate"); + + /* Create memory dataspace */ + dimsm[0] = CHUNKSZ; + mid = H5Screate_simple(RANK, dimsm, NULL); + CHECK(mid, FAIL, "H5Pcreate"); + + /* Set up to create a chunked dataset */ + dcpl = H5Pcreate(H5P_DATASET_CREATE); + CHECK(dcpl, FAIL, "H5Pcreate"); + + chunk_dims[0] = CHUNKSZ; + ret = H5Pset_chunk(dcpl, RANK, chunk_dims); + CHECK(ret, FAIL, "H5Pset_chunk"); + + /* Create a chunked dataset */ + did = H5Dcreate2(fid, DNAME, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT); + CHECK(did, FAIL, "H5Dcreate2"); + + /* Set up hyperslab selection for file dataspace */ + offset[0] = 0; + stride[0] = 1; + count[0] = 1; + block[0] = CHUNKSZ; + + /* Write to each chunk in the dataset */ + for (i = 0; i < NUMCHUNKS; i++) { + /* Set the hyperslab selection */ + ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, offset, stride, count, block); + CHECK(ret, FAIL, "H5Sselect_hyperslab"); + + /* Write to the dataset */ + ret = H5Dwrite(did, H5T_NATIVE_INT, mid, sid, H5P_DEFAULT, wdata); + CHECK(ret, FAIL, "H5Dwrite"); + + /* Extend the dataset's dataspace */ + if(i < (NUMCHUNKS - 1)) { + offset[0] = offset[0] + CHUNKSZ; + dims[0] = dims[0] + CHUNKSZ; + ret = H5Dset_extent(did, dims); + CHECK(ret, FAIL, "H5Dset_extent"); + + /* Get the dataset's current dataspace */ + sid = H5Dget_space(did); + CHECK(sid, FAIL, "H5Dget_space"); + } + } + + /* Closing */ + ret = H5Sclose(sid); + CHECK(ret, FAIL, "H5Sclose"); + ret = H5Sclose(mid); + CHECK(ret, FAIL, "H5Sclose"); + ret = H5Dclose(did); + CHECK(ret, FAIL, "H5Dclose"); + ret = H5Pclose(dcpl); + CHECK(ret, FAIL, "H5Pclose"); + ret = H5Fclose(fid); + CHECK(ret, FAIL, "H5Fclose"); + + /* Open the file */ + fid = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT); + CHECK(fid, FAIL, "H5Fopen"); + + /* Open the dataset */ + did = H5Dopen(fid, DNAME, H5P_DEFAULT); + CHECK(did, FAIL, "H5Dopen"); + + /* Set up to read every 10th element in file dataspace */ + offset[0] = 1; + stride[0] = 10; + count[0] = NUM_ELEMENTS/10; + block[0] = 1; + + /* Get the dataset's dataspace */ + sid = H5Dget_space(did); + CHECK(sid, FAIL, "H5Pcreate"); + ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, offset, stride, count, block); + CHECK(ret, FAIL, "H5Sselect_hyperslab"); + + /* Set up contiguous memory dataspace for the selected elements */ + dimsm[0] = count[0]; + mid = H5Screate_simple(RANK, dimsm, NULL); + CHECK(mid, FAIL, "H5Screate"); + + /* Read all the selected 10th elements in the dataset into "rdata" */ + ret = H5Dread(did, H5T_NATIVE_INT, mid, sid, H5P_DEFAULT, rdata); + CHECK(ret, FAIL, "H5Dread"); + + /* Verify data read is correct */ + for(i = 0; i < 6; i += 2) { + VERIFY(rdata[i], 1, "H5Dread\n"); + VERIFY(rdata[i+1], 11, "H5Dread\n"); + } + + /* Closing */ + ret = H5Sclose(mid); + CHECK(ret, FAIL, "H5Sclose"); + ret = H5Sclose(sid); + CHECK(ret, FAIL, "H5Sclose"); + ret = H5Dclose(did); + CHECK(ret, FAIL, "H5Dclose"); + ret = H5Fclose(fid); + CHECK(ret, FAIL, "H5Fclose"); + +} /* test_hyper_io_1d() */ + /**************************************************************** ** ** test_select(): Main H5S selection testing routine. @@ -15499,6 +15657,10 @@ test_select(void) /* Test selection intersection with block */ test_select_intersect_block(); + + /* Test reading of 1-d disjoint file space to 1-d single block memory space */ + test_hyper_io_1d(); + } /* test_select() */ |