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habanero

Beginner

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02-14-2012
09:43 AM

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PARDISO ( sequence_ido,parameters) error_num= 31

*** Error in PARDISO ( sequence_ido,parameters) error_num= 31

*** Input check: Two-level factorization algorithm does not work in OOC mode.

If I copy the old MKL DLLs (10.3.4.1) into the program folder, with the same app, it works. Any suggestions?

The file .\\pardiso_ooc.cfg was not opened

=== PARDISO is running in Out-Of-Core mode, because iparam(60)=1 and there is not enough RAM for In-Core ===

================ PARDISO: solving a real nonsymmetric system ================

The local (internal) PARDISO version is : 103000115

0-based array is turned ON

PARDISO double precision computation is turned ON

METIS algorithm at reorder step is turned ON

Task does not fit RAM, OOC NLL factorization algorithm is turned ON

Scaling is turned ON

Matching is turned ON

Summary: ( reordering phase )

================

Times:

======

Time spent in calculations of symmetric matrix portrait(fulladj): 0.077612 s

Time spent in reordering of the initial matrix(reorder) : 2.763583 s

Time spent in symbolic factorization(symbfct) : 1.088499 s

Time spent in data preparations for factorization(parlist) : 1.011271 s

Time spent in allocation of internal data structures(malloc) : 0.511346 s

Time spent in additional calculations : 4.108413 s

Total time spent : 9.560724 s

Statistics:

===========

< Parallel Direct Factorization with #processors: > 4

< Numerical Factorization with BLAS3 and O(n) synchronization >

< Linear system Ax = b>

#equations: 262701

#non-zeros in A: 3614742

non-zeros in A (): 0.005238

#right-hand sides: 1

< Factors L and U >

#columns for each panel: 96

#independent subgraphs: 0

< Preprocessing with state of the art partitioning metis>

#supernodes: 130123

size of largest supernode: 4946

number of nonzeros in L 139898411

number of nonzeros in U 133551150

number of nonzeros in L+U 273449561

Settings:

iparm[0] = 1;

iparm[1] = 2;

iparm[2] = 0;

iparm[3] = 0;

iparm[4] = 0;

iparm[5] = 0;

iparm[6] = 0;

iparm[7] = 2;

iparm[8] = 0;

iparm[9] = 13;

iparm[10] = 1;

iparm[11] = 0;

iparm[12] = 1;

iparm[13] = 0;

iparm[14] = 0;

iparm[15] = 0;

iparm[16] = 0;

iparm[17] = 0;

iparm[18] = 0;

iparm[19] = 0;

iparm[23] = 1;

iparm[24] = 1;

iparm[26] = 1;

iparm[27] = 1;

iparm[34] = 1;

iparm[59] = 1;

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Gennady_F_Intel

Moderator

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02-14-2012
10:17 AM

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Between update 4 and 8 we slightly changed the behavior of solver with OOC mode.

In the case if PARDISO run in OOC mode then two-level factorization algorithm is not supported ( see note into documentation)

In your case you choose hybrid mode but for your inputs, the available RAM is not sufficient, therefore PARISO automatically switch to OOC mode.

- Increase RAM or

- Change parallel factorization algorithm as default for example

--Gennady

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