On 28/09/11 05.26, Denis wrote:
You are missing to inform pbs that you are using 8 cores. you have to add before anything runs in your script a line: #PBS -lnodes=8Torque cannot trace the number of mpi processes. A user could request 4 cpus and start n mpi processes for example. So, requesting it in your script as #PBS -lnodes=8 then running mpirun -np 8 will do the job.
As a side note, in order to prevent jobs submitted with wrong/missing arguments to interfere with other jobs, we use a feature of the kernel called *cpuset*, which seems to work very well.
Torque: 2.5.5 Maui: 3.3.1 doc: http://www.clusterresources.com/torquedocs21/3.5linuxcpusets.shtml .a. -- Antonio Messina I.T. Specialist email: [email protected] | The Abdus Salam ICTP phone: +39 040-2240-691 | Strada Costiera, 11 fax: +39 040-2240-7691 | 34151 Trieste, Italy
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