On Wed, Feb 27, 2019 at 7:03 PM Sajid Ali <sajidsyed2...@u.northwestern.edu<mailto:sajidsyed2...@u.northwestern.edu>> wrote: Hi Junchao, I’m confused with the syntax. If I submit the following as my job script, I get an error : #!/bin/bash #SBATCH --job-name=petsc_test #SBATCH -N 1 #SBATCH -C knl,quad,flat #SBATCH -p apsxrmd #SBATCH --time=1:00:00 module load intel/18.0.3-d6gtsxs module load intel-parallel-studio/cluster.2018.3-xvnfrfz module load numactl-2.0.12-intel-18.0.3-wh44iog srun -n 64 -c 64 --cpu_bind=cores numactl -m 1 aps ./ex_modify -ts_type cn -prop_steps 25 -pc_type gamg -ts_monitor -log_view The error is : srun: cluster configuration lacks support for cpu binding This cluster does not support cpu binding. You need to remove --cpu_bind=cores. In addition, I don't know what is the 'aps' argument srun: error: Unable to create step for job 916208: More processors requested than permitted I remember the product of -n -c has to be 256. You can try srun -n 64 -c 4 numactl -m 1 ./ex_modify ... I’m following the advice as given at slide 33 of https://www.nersc.gov/assets/Uploads/02-using-cori-knl-nodes-20170609.pdf For further info, I’m using LCRC at ANL. Thank You, Sajid Ali Applied Physics Northwestern University
Re: [petsc-users] Direct PETSc to use MCDRAM on KNL and other optimizations for KNL
Zhang, Junchao via petsc-users Wed, 27 Feb 2019 18:23:03 -0800
- Re: [petsc-users] Direct PETSc to use MCDRA... Zhang, Junchao via petsc-users
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