<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">John,<div><br></div><div>Can you try h5dump to read the hyperslab on which your MPI program fails? (to check if sequential indeed can read the file and file is OK).</div><div><br></div><div>Sub-setting parameters can now be expressed as <span class="Apple-style-span" style="font-family: monospace; ">--dataset="/foo/mydataset[START;STRIDE;COUNT;BLOCK]"</span></div><div><font class="Apple-style-span" face="monospace"><br></font></div><div>Elena<br><div><div>On Jan 13, 2010, at 6:52 AM, Biddiscombe, John A. wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Can anyone tell from this error stack (below) what might have gone wrong. The file is a single dataset of approx 32GB it looks like this "h5dump -HA ..."<br><br>HDF5 "/project/csvis/biddisco/xdmf_test/ringRe25k_omegaI01500.h5" {<br>GROUP "/" {<br> DATASET "00000__Node__omega" {<br> DATATYPE H5T_IEEE_F32LE<br> DATASPACE SIMPLE { ( 3521, 881, 881, 3 ) / ( 3521, 881, 881, 3 ) }<br> }<br>}<br>}<br><br>Smaller versions of the same file work ok when I try to read hyperslabs (note parallel read is enabled, so mpiio is being used), but the big one fails. the final message about " can't convert from size to size_i" makes me suspicious that there's something fishy going on with long ints etc. <br><br>thanks<br><br>JB<br><br>HDF5-DIAG: Error detected in HDF5 (1.8.4) MPI-process 1:<br> #000: /workspace/hdf5-1.8/src/H5Dio.c line 174 in H5Dread(): can't read data<br> major: Dataset<br> minor: Read failed<br> #001: /workspace/hdf5-1.8/src/H5Dio.c line 405 in H5D_read(): can't read data<br> major: Dataset<br> minor: Read failed<br> #002: /workspace/hdf5-1.8/src/H5Dcontig.c line 520 in H5D_contig_read(): contiguous read failed<br> major: Dataset<br> minor: Read failed<br> #003: /workspace/hdf5-1.8/src/H5Dselect.c line 275 in H5D_select_read(): read error<br> major: Dataspace<br> minor: Read failed<br> #004: /workspace/hdf5-1.8/src/H5Dselect.c line 210 in H5D_select_io(): read error<br> major: Dataspace<br> minor: Read failed<br> #005: /workspace/hdf5-1.8/src/H5Dcontig.c line 838 in H5D_contig_readvv(): block write failed<br> major: Low-level I/O<br> minor: Write failed<br> #006: /workspace/hdf5-1.8/src/H5Fio.c line 117 in H5F_block_read(): driver read request failed<br> major: Low-level I/O<br> minor: Read failed<br> #007: /workspace/hdf5-1.8/src/H5FDint.c line 142 in H5FD_read(): driver read request failed<br> major: Virtual File Layer<br> minor: Read failed<br> #008: /workspace/hdf5-1.8/src/H5FDmpio.c line 1445 in H5FD_mpio_read(): can't convert from size to size_i<br> major: Internal error (too specific to document in detail)<br> minor: Out of range<br><br>_______________________________________________<br>Hdf-forum is for HDF software users discussion.<br><a href="mailto:Hdf-forum@hdfgroup.org">Hdf-forum@hdfgroup.org</a><br>http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org<br></div></blockquote></div><br></div></body></html>