topic thanks for the report. we in Intel® oneAPI Math Kernel Library

phase 13 does not work in cluster_sparse_solver

Chaowen_G_ — Mon, 29 Sep 2014 22:44:50 GMT

Hi:

I take mkl/examplescluster_sparse_solver/cl_solver_unsym_distr_c.c and compile it with mpic++ -cxx=icpc -mkl -xHost and it works well. From the mkl document, I know that I can combine phase 11, phase 22 and phase 33 together to phase 13. However, after I use mpiexec -n 2 to run the later case, I get:

Fatal error in PMPI_Bcast: Other MPI error, error stack:
PMPI_Bcast(1606)......: MPI_Bcast(buf=0x7fff159c2100, count=100, MPI_LONG_LONG_INT, root=0, MPI_COMM_WORLD) failed
MPIR_Bcast_impl(1458).:
MPIR_Bcast(1482)......:
MPIR_Bcast_intra(1253):
MPIR_SMP_Bcast(1167)..: Failure during collective

I use mpicxx for MPICH version 3.1 and mkl 11.2, icpc 15.0.0 on linux64

I want to ask is it a bug?

thanks for the report. we

Gennady_F_Intel — Tue, 30 Sep 2014 04:00:13 GMT

thanks for the report. we will check it.

We see the problem on our

Gennady_F_Intel — Tue, 30 Sep 2014 05:45:22 GMT

We see the problem on our side. We will check and back to you soon. At the first glance this is the bug.

Chaowen

Gennady_F_Intel — Mon, 01 Dec 2014 05:17:00 GMT

Chaowen

the problem has been fixed in the latest 11.2.1 ( update 1 ). Would you please check how it works on your side and let us know the results.

--Gennady

Thanks, it works now.

Chaowen_G_ — Mon, 01 Dec 2014 20:26:29 GMT

Thanks, it works now.

thanks for checking the

Gennady_F_Intel — Tue, 02 Dec 2014 04:41:23 GMT

thanks for checking the problem and confirm the fix on your side.