Summary of HDF5 parallel features

hdf5_parallel.md

This table sums up what is and is not possible with concurrent accesses on HDF5 files using the h5py library.

<td><!-- read possible? --></td>
<td><!-- read fast? --></td>
<td><!-- read limitations? --></td>

<td>-</td>
<td>-</td>
<td>-</td>

<td>-</td>
<td>-</td>
<td>-</td>

<td><!-- write possible? --></td>
<td><!-- write fast? --></td>
<td><!-- write limitations? --></td>

<td><!-- read possible? --></td>
<td><!-- read fast? --></td>
<td><!-- read limitations? --></td>

<td><!-- write possible? --></td>
<td><!-- write fast? --></td>
<td><!-- write limitations? --></td>

<td>read only</td>

<td><!-- read possible? --></td>
<td><!-- read fast? --></td>
<td><!-- read limitations? --></td>

<td>-</td>
<td>-</td>
<td>-</td>

<td>-</td>
<td>-</td>
<td>-</td>

<td><!-- write possible? --></td>
<td><!-- write fast? --></td>
<td><!-- write limitations? --></td>

<td><!-- read possible? --></td>
<td><!-- read fast? --></td>
<td><!-- read limitations? --></td>

<td><!-- write possible? --></td>
<td><!-- write fast? --></td>
<td><!-- write limitations? --></td>

opened in	access mode	reading			writing
		possible? (yes/no/MPI required/...)	fast? (yes/no/serial/multicore/...)	limitations causes? (h5py/GIL/libhdf5/...)	possible?	fast?	limitations causes?
one process, multiple threads	read only
	write only
	read and write
multiple processes
	write only
	read and write