Better/more description of msa_fix_ld

parent 89e0021a
......@@ -75,8 +75,6 @@ When the nodes of a job belong to different interconnects and MPI communication
To request gateway nodes for a job the mandatory option --gw_num has to be specified at submit/allocation time. In addition, communication with the psgwd has to be ensured via loading the software module **pscom-gateway** either via ``xenv`` or the ``module`` command.
**April 2019** For the time being, prefixing binaries via ``msa_fix_ld`` is necessary, due to a libmpi version that does not support the psgwd. We hope this will go away soon.
To start an interactive pack job using two gateway nodes the following command must be used:
.. code-block:: none
......@@ -99,6 +97,19 @@ When submitting a job that will run later, you have to specify the number of gat
srun xenv -L pscom-gateway msa_fix_ld ./prog1 : xenv -L pscom-gateway msa_fix_ld ./prog2
Current MPI Workaround (April 2019)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For the time being, prefixing binaries via ``msa_fix_ld`` is necessary. This is due to the fact that the installed libmpi version does not support the psgwd. We hope this will go away soon.
``msa_fix_ld`` is modifying the environment, so it might influence the modules you load.
.. code-block:: none
#!/bin/bash
export PSP_PSM=1
export LD_LIBRARY_PATH="/usr/local/jsc/msa_parastation_mpi/lib:/usr/local/jsc/msa_parastation_mpi/lib/mpi-hpl-gcc/:${LD_LIBRARY_PATH}"
$*
Debugging
~~~~~~~~~
......
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