Optimization of HPC job

raunakjung · June 1, 2017, 19:07

I am using I am using a HPC
Apro green server
Centos 6.3 Linux based
256 core

Since the HPC has time limit 72:00:00 I am not able to finish my calculation within the time. How could I optimize my resources use to finish job in time.
I can use Distributed MPI parallel for my calculations

Thank You

Following is my script file :
#@ resources = ConsumableCpus (1) ConsumableMemory(2gb)

#@ wall_clock_limit =72:00:00

#@ total_tasks =32

#@ blocking =unlimited
. /applic/Applications/env_setup/cfx_v150.env

nodes=`cat $LOADL_HOSTFILE`
nodes=`echo $nodes | sed -e 's/ /,/g'`

export CFX5RSH=ssh

cfx5solve -mdef CFX.mdef -start-method "Platform MPI Distributed Parallel" -par -def

evcelica · June 5, 2017, 14:20

You can set wall clock limit in CFX Pre. So the simulation will stop at say...71 hours.
Can you then just restart the simulation using the previous results file as initial conditions? Therefore, just breaking it into two+ runs?

June 1, 2017, 19:07	Optimization of HPC job	#1
raunakjung Senior Member raunak jung pandey Join Date: Jun 2016 Posts: 102 Rep Power: 10	I am using I am using a HPC Apro green server Centos 6.3 Linux based 256 core Since the HPC has time limit 72:00:00 I am not able to finish my calculation within the time. How could I optimize my resources use to finish job in time. I can use Distributed MPI parallel for my calculations Thank You Following is my script file : #@ resources = ConsumableCpus (1) ConsumableMemory(2gb) #@ wall_clock_limit =72:00:00 #@ total_tasks =32 #@ blocking =unlimited . /applic/Applications/env_setup/cfx_v150.env nodes=`cat $LOADL_HOSTFILE` nodes=`echo $nodes \| sed -e 's/ /,/g'` export CFX5RSH=ssh cfx5solve -mdef CFX.mdef -start-method "Platform MPI Distributed Parallel" -par -def

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June 5, 2017, 14:20		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	You can set wall clock limit in CFX Pre. So the simulation will stop at say...71 hours. Can you then just restart the simulation using the previous results file as initial conditions? Therefore, just breaking it into two+ runs?