On Sat, Dec 31, 2016 at 9:53 AM, Eric Chamberland < [email protected]> wrote:
Hi,
I am just starting to debug a bug encountered with and only with SuperLU_Dist combined with MKL on a 2 processes validation test.
(the same test works fine with MUMPS on 2 processes).
I just noticed that the SuperLU_Dist version installed by PETSc configure script is 5.1.0 and the latest SuperLU_DIST is 5.1.3.
Before going further, I just want to ask:
Is there any specific reason to stick to 5.1.0?
Can you debug in 'master' which does have 5.1.3, including an important bug fix? Matt
Here is some more information:
On process 2 I have this printed in stdout:
Intel MKL ERROR: Parameter 6 was incorrect on entry to DTRSM .
and in stderr:
Test.ProblemeEFGen.opt: malloc.c:2369: sysmalloc: Assertion `(old_top == (((mbinptr) (((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >= (unsigned long)((((__builtin_offsetof (struct malloc_chunk, fd_nextsize))+((2 *(sizeof(size_t))) - 1)) & ~((2 *(sizeof(size_t))) - 1))) && ((old_top)->size & 0x1) && ((unsigned long) old_end & pagemask) == 0)' failed. [saruman:15771] *** Process received signal ***
This is the 7th call to KSPSolve in the same execution. Here is the last KSPView:
KSP Object:(o_slin) 2 MPI processes type: preonly maximum iterations=10000, initial guess is zero tolerances: relative=1e-05, absolute=1e-50, divergence=10000. left preconditioning using NONE norm type for convergence test PC Object:(o_slin) 2 MPI processes type: lu LU: out-of-place factorization tolerance for zero pivot 2.22045e-14 matrix ordering: natural factor fill ratio given 0., needed 0. Factored matrix follows: Mat Object: 2 MPI processes type: mpiaij rows=382, cols=382 package used to perform factorization: superlu_dist total: nonzeros=0, allocated nonzeros=0 total number of mallocs used during MatSetValues calls =0 SuperLU_DIST run parameters: Process grid nprow 2 x npcol 1 Equilibrate matrix TRUE Matrix input mode 1 Replace tiny pivots FALSE Use iterative refinement FALSE Processors in row 2 col partition 1 Row permutation LargeDiag Column permutation METIS_AT_PLUS_A Parallel symbolic factorization FALSE Repeated factorization SamePattern linear system matrix = precond matrix: Mat Object: (o_slin) 2 MPI processes type: mpiaij rows=382, cols=382 total: nonzeros=4458, allocated nonzeros=4458 total number of mallocs used during MatSetValues calls =0 using I-node (on process 0) routines: found 109 nodes, limit used is 5
I know this information is not enough to help debug, but I would like to know if PETSc guys will upgrade to 5.1.3 before trying to debug anything.
Thanks, Eric
-- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener