As a follow up, I tried manually iterating through the dataset:
--- hdf5_iterate.c ---
#include "hdf5.h"
herr_t file_info(hid_t loc_id, const char *name, void *opdata);
int
main(void)
{
hid_t file;
hid_t dataset;
hid_t group;
file = H5Fopen("hdf5_stress_test.h5", H5F_ACC_RDONLY, H5P_DEFAULT);
H5Giterate(file, "/", NULL, file_info, NULL);
H5Fclose(file);
return 0;
}
herr_t file_info(hid_t loc_id, const char *name, void *opdata)
{
H5G_stat_t statbuf;
/*
* Get type of the object and display its name and type.
* The name of the object is passed to this function by
* the Library. Some magic :-)
*/
H5Gget_objinfo(loc_id, name, 0, &statbuf);
switch (statbuf.type) {
case H5G_GROUP:
printf(" Object with name %s is a group \n", name);
break;
case H5G_DATASET:
printf(" Object with name %s is a dataset \n", name);
break;
case H5G_TYPE:
printf(" Object with name %s is a named datatype \n", name);
break;
default:
printf(" Unable to identify an object ");
}
return 0;
}
--- ---
This runs very slowly, taking ~1sec for each iteration (11 days to
iterate over the whole file!!!). I guess this isn't really a pytables
problem - which hdf5 mailing list would be appropriate?
James
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