James: Text replacement - "[pP][bB][sS]" to "SLURM"

2022-10-27T19:31:07Z

Text replacement - "[pP][bB][sS]" to "SLURM"

← Older revision		Revision as of 19:31, 27 October 2022
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	</pre>		</pre>

	The ~~pbs~~ script to run this program on penzias is as follows:		The SLURM script to run this program on penzias is as follows:

	<pre>		<pre>

James: Created page with "Since knowledge of MPI is not required for use of this software, we now refer to the package as simply ParGAP. For more information visit the author's ParGAP home page at: http://www.ccs.neu.edu/home/gene/pargap.html. The package is installed on '''penzias''' cluster. Users must load module '''pargap'''.

  module load pargap

The example below named '''parlist.g''' is a parallelization of a list.

  #WARNING:  Read this with Read(), _not_ ParRead()..."

2022-10-20T18:56:03Z

Created page with "Since knowledge of MPI is not required for use of this software, we now refer to the package as simply ParGAP. For more information visit the author's ParGAP home page at: http://www.ccs.neu.edu/home/gene/pargap.html. The package is installed on '''penzias''' cluster. Users must load module '''pargap'''. <pre> module load pargap </pre> The example below named '''parlist.g''' is a parallelization of a list. <pre> #WARNING: Read this with Read(), _not_ ParRead()..."

New page

Since knowledge of MPI is not required for use of this software, we now refer to the package as simply ParGAP. For more information visit the author's ParGAP home page at: http://www.ccs.neu.edu/home/gene/pargap.html. The package is installed on '''penzias''' cluster. Users must load module '''pargap'''.

<pre>

module load pargap

</pre>

The example below named '''parlist.g''' is a parallelization of a list.

<pre>

#WARNING: Read this with Read(), _not_ ParRead()

#Environment: None
#TaskInput: elt, where elt is an element of argument, list
#TaskOutput: fnc(elt), where fnc is argument
#Task: Compute fnc(elt) from elt [ Hence, DoTask = fnc ]
#UpdateEnvironment: None

ParInstallTOPCGlobalFunction( "MyParList",
function( list, fnc )
local result, iter;
result := [];
iter := Iterator(list);
MasterSlave( function() if IsDoneIterator(iter) then return NOTASK;
else return NextIterator(iter); fi; end,
fnc,
function(input,output) result[input] := output;
return NO_ACTION; end,
Error
);
return result;
end );

ParInstallTOPCGlobalFunction( "MyParListWithAglom",
function( list, fnc, aglomCount )
local result, iter;
result := [];
iter := Iterator(list);
MasterSlave( function() if IsDoneIterator(iter) then return NOTASK;
else return NextIterator(iter); fi; end,
fnc,
function(input,output)
local i;
for i in [1..Length(input)] do
result[input[i]] := output[i];
od;
return NO_ACTION;
end,
Error, # Never called, can specify anything
aglomCount
);
return result;
end );
</pre>

The pbs script to run this program on penzias is as follows:

<pre>
#!/bin/bash
#SBATCH --partition production
#SBATCH --job-name par_list
#SBATCH --nodes=1
#SBATCH --ntasks=4

cd $SLURM_SUBMIT_DIR

mpirun -np 4 pargap ./parlist.g >> parlist_out

</pre>

This will create a master and 3 slave processes . Further information and detailed manual how to program with parallel GAP can be found in http://www.gap-system.org/Manuals/pkg/pargap/doc/manual.pdf

ParGAP - Revision history

James: Text replacement - "[pP][bB][sS]" to "SLURM"