Dear MPI users,I have a small serial program that reads a sparse matrix from a file and factorizes it using the sparse direct solvers included in PARDISO MKL. When I execute the program with the matrix of interest, PARDISO factorizes it succesfully. No SIGSEV is produced. However, if I transform this small sequential program to a message-passing program (i.e., wrapping its codes around MPI_INIT/MPI_FINALIZE and executing it using mpirun -np 1 PROGRAM) then a SIGSEV appears. Therefore, the problem seems to be related to the combination of PARDISO MKL and the message-passing environment (OpenMPI).
Some of the characteritics of the environment are: - MPI: OpenMPI 1.5.4 (find attached the output from ompi_info --all) - fortran compiler: ifort version 13.0.1 - Linux Kernel: Linux version 3.0.13-0.27-default (geeko@buildhost)(gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux) ) #1 SMP Wed Feb 15 13:33:49 UTC 2012 (d73692b)
- MKL libraries: MKL/13.0.1 - CPU: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz I have also reported this issue on the Intel MKL forum, and provided a reproducer of the issue on: http://software.intel.com/en-us/forums/topic/375486 The "weird" observation is that I could reproduce the issue on three machines based on the Intel SandyBridge-based multicore-CPUs, while I could not on a pair of non SandyBridge-based Intel archictures, using exactly the same software stack. I am afraid that Intel SandyBridge-based CPUs have any particularity with respect to virtual memory handling that cause PARDISO MKL to SIGSEV once MPI_INIT has been called. Could u please help me to find the root-cause of this issue? Thanks in advance. Best regards, Alberto. -- Alberto F. Martín-Huertas Centre Internacional de Mètodes Numèrics a l'Enginyeria (CIMNE) Parc Mediterrani de la Tecnologia, UPC Esteve Terradas 5, Building C3, Office 210, 08860 Castelldefels (Barcelona, Spain) Tel.: (+34) 9341 34223 e-mail: amar...@cimne.upc.edu ________________ IMPORTANT NOTICEAll personal data contained on this mail will be processed confidentially and registered in a file property of CIMNE in order to manage corporate communications. You may exercise the rights of access, rectification, erasure and object by
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ompi_info_all_mn3.tgz
Description: GNU Zip compressed data
