topic Dear Puneet, in Intel® oneAPI Math Kernel Library

HPCG- Assertion nxf%2==0 failed.

psing51 — Mon, 21 Nov 2016 07:54:07 GMT

Dear All,
I have compiled HPCG benchmark with intel 2016 parallel studio XE for (2x)Xeon(R) CPU E5-2680 (RHEL 6.6).
I have 64 GB of memory installed on my machine. Also, my hpcg.dat file is :

HPCG Linpack benchmark input file
Sandia National Laboratories, University of Tennessee
430 430 430
1200

With this configuration , the xhpcg binary occupies 83% of memory but after ~ 13 minutes the run crashes with error:
xhpcg: src/GenerateCoarseProblem.cpp:50: void GenerateCoarseProblem(const SparseMatrix_STRUCT &): Assertion `nxf%2==0' failed.

Could you please let me know where i am going wrong with the configurations?

Hello,

Ying_H_Intel — Thu, 24 Nov 2016 08:54:52 GMT

Hello,

IPS XE(include MKL) have upgrade to 2017 update 1. If possible, could you please try the latest version?

and here is ready exectuable file from https://software.intel.com/en-us/articles/intel-mkl-benchmarks-suite, could you please run them first and see if it work on your environment

Best Regards,

Ying

Dear Puneet,

Alexander_K_Intel1 — Thu, 24 Nov 2016 13:13:40 GMT

Dear Puneet, Problem size should be multiplier of 8. This is due to geometric multigrid preconditioner used in benchmars is coarsing the grid by 2 for 3 times. Please let me know if it works for you. Best regards, Alexander