src and dest data spaces have different sizes

Hdf-forum archives
1

Trying to write to a hyperslab and get this error:

    HDF5-DIAG: Error detected in HDF5 (1.8.13) thread 140423587391296:
    #000: ../../../src/H5Dio.c line 225 in H5Dwrite(): can't prepare for
writing data
    major: Dataset
    minor: Write failed
    #001: ../../../src/H5Dio.c line 347 in H5D__pre_write(): can't write
data
    major: Dataset
    minor: Write failed
    #002: ../../../src/H5Dio.c line 685 in H5D__write(): src and dest data
spaces have different sizes
    major: Invalid arguments to routine
    minor: Bad value
    terminate called after throwing an instance of 'H5::DataSetIException'
    Aborted

not sure why. Here is the code:

    #include <H5Cpp.h>
    #include <string>

    const hsize_t MAX_DIMS[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
    const int CHUNK_RANK = 1;
    const int CHUNK_DIM = 365;
    const hsize_t CHUNK_SPACE[2] = {(hsize_t)CHUNK_RANK,
(hsize_t)CHUNK_DIM};
    const double NULL_VALUE = -999.99;

    int main()
    {
      hsize_t rank = 2;
      std::string filename = "NEALL01-60.h5";
      hsize_t offset[2], count[2];
      int dimSize = 14363702;

      H5::DSetCreatPropList propList;
      propList.setChunk(rank, CHUNK_SPACE);
      propList.setDeflate(6);

      H5::H5File file(filename, H5F_ACC_TRUNC);

      hsize_t dims[2] = {rank, (hsize_t)dimSize};
      H5::DataSpace dataSpace(rank, dims, MAX_DIMS);
      H5::DataSet dataset(file.createDataSet("60",
H5::PredType::NATIVE_DOUBLE, dataSpace, propList));

      H5::DataSpace memSpace = dataset.getSpace();
      double data[CHUNK_RANK][CHUNK_DIM];
      for (int a = 0; a < CHUNK_RANK; a++)
      {
        for (int b = 0; b < CHUNK_DIM; b++)
        {
          data[a][b] = NULL_VALUE;
        }
      }

      count[0] = CHUNK_RANK;
      count[1] = CHUNK_DIM;
      offset[0] = 0;
      offset[1] = 0;
      memSpace.selectHyperslab(H5S_SELECT_SET, count, offset);
      dataset.write(data, H5::PredType::NATIVE_DOUBLE, memSpace, dataSpace);
    }

Thought the getSpace() call would copy the dataspace so I'm not sure why it
is failing since this seems similar to the tutorials. Or perhaps I missed
something.

2

Hello Jamie,

Please make sure that the memspace selection is equal to the filespace selection in the call to "write". Your memspace is a small selection and your dataSpace is the entire dataspace of the dataset. You can find more information about hyperslab selection here:

https://www.hdfgroup.org/HDF5/doc/UG/UG_frame12Dataspaces.html

Binh-Minh

···

________________________________
From: Hdf-forum <hdf-forum-bounces@lists.hdfgroup.org> on behalf of Jamie Ryan Lahowetz <jlahowetz2@unl.edu>
Sent: Thursday, September 24, 2015 2:02 PM
To: HDF Users Discussion List
Subject: [Hdf-forum] src and dest data spaces have different sizes

Trying to write to a hyperslab and get this error:

    HDF5-DIAG: Error detected in HDF5 (1.8.13) thread 140423587391296:
    #000: ../../../src/H5Dio.c line 225 in H5Dwrite(): can't prepare for writing data
    major: Dataset
    minor: Write failed
    #001: ../../../src/H5Dio.c line 347 in H5D__pre_write(): can't write data
    major: Dataset
    minor: Write failed
    #002: ../../../src/H5Dio.c line 685 in H5D__write(): src and dest data spaces have different sizes
    major: Invalid arguments to routine
    minor: Bad value
    terminate called after throwing an instance of 'H5::DataSetIException'
    Aborted

not sure why. Here is the code:

    #include <H5Cpp.h>
    #include <string>

    const hsize_t MAX_DIMS[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
    const int CHUNK_RANK = 1;
    const int CHUNK_DIM = 365;
    const hsize_t CHUNK_SPACE[2] = {(hsize_t)CHUNK_RANK, (hsize_t)CHUNK_DIM};
    const double NULL_VALUE = -999.99;

    int main()
    {
      hsize_t rank = 2;
      std::string filename = "NEALL01-60.h5";
      hsize_t offset[2], count[2];
      int dimSize = 14363702;

      H5::DSetCreatPropList propList;
      propList.setChunk(rank, CHUNK_SPACE);
      propList.setDeflate(6);

      H5::H5File file(filename, H5F_ACC_TRUNC);

      hsize_t dims[2] = {rank, (hsize_t)dimSize};
      H5::DataSpace dataSpace(rank, dims, MAX_DIMS);
      H5::DataSet dataset(file.createDataSet("60", H5::PredType::NATIVE_DOUBLE, dataSpace, propList));

      H5::DataSpace memSpace = dataset.getSpace();
      double data[CHUNK_RANK][CHUNK_DIM];
      for (int a = 0; a < CHUNK_RANK; a++)
      {
        for (int b = 0; b < CHUNK_DIM; b++)
        {
          data[a][b] = NULL_VALUE;
        }
      }

      count[0] = CHUNK_RANK;
      count[1] = CHUNK_DIM;
      offset[0] = 0;
      offset[1] = 0;
      memSpace.selectHyperslab(H5S_SELECT_SET, count, offset);
      dataset.write(data, H5::PredType::NATIVE_DOUBLE, memSpace, dataSpace);
    }

Thought the getSpace() call would copy the dataspace so I'm not sure why it is failing since this seems similar to the tutorials. Or perhaps I missed something.