Hello everyone,
I met a tricky problem when solving a sparse unsymmetric complex matrics with fotran pardiso MKL within Windows environment:
I installed Mircosoft Visual Studio 2012 and Intel Parallel Studio XE 2013 (not quite sure the version of MKL).
When I specifies the phase parameter inside the subroutine with either 11, 22, or 33, the executable file got stuck and stop running. If changed to 1, 2 and then 3 phase by phase, the result are not reliable unfortunately and the following was present when the msglvl goes to 1 :
*** Error in PARDISO ( sequence_ido,parameters) error_num= 20
*** wrong control step parameter ido 1
=== PARDISO: solving a complex nonsymetric system ===
================
Times:
======
Time spent in additional calculations : 0.002354 s
Total time spent : 0.002354 s
Statistics:
===========
< Parallel Direct Factorization with number of processors: > 2
< Numerical Factorization with BLAS3 and O(n) synchronization >
< Linear system Ax = b >
number of equations: 1278
number of non-zeros in A: 13434
number of non-zeros in A (): 0.822515
number of right-hand sides: 1
< Factors L and U >
number of columns for each panel: 128
number of independent subgraphs: 0
< Preprocessing with state of the art partitioning metis>
number of supernodes: 0
size of largest supernode: 0
number of non-zeros in L: 0
number of non-zeros in U: 0
number of non-zeros in L+U: 0
*** Error in PARDISO ( sequence_ido,parameters) error_num= 20
*** wrong control step parameter ido 2
=== PARDISO: solving a complex nonsymetric system ===
================
Times:
======
Time spent in additional calculations : 0.000108 s
Total time spent : 0.000108 s
Statistics:
===========
< Parallel Direct Factorization with number of processors: > 2
< Numerical Factorization with BLAS3 and O(n) synchronization >
< Linear system Ax = b >
number of equations: 1278
number of non-zeros in A: 13434
number of non-zeros in A (): 0.822515
number of right-hand sides: 1
< Factors L and U >
number of columns for each panel: 128
number of independent subgraphs: 0
< Preprocessing with state of the art partitioning metis>
number of supernodes: 0
size of largest supernode: 0
number of non-zeros in L: 0
number of non-zeros in U: 0
number of non-zeros in L+U: 0
*** Error in PARDISO ( sequence_ido,parameters) error_num= 20
*** wrong control step parameter ido 3
=== PARDISO: solving a complex nonsymetric system ===
================
Times:
======
Time spent in additional calculations : 0.000102 s
Total time spent : 0.000102 s
Statistics:
===========
< Parallel Direct Factorization with number of processors: > 2
< Numerical Factorization with BLAS3 and O(n) synchronization >
< Linear system Ax = b >
number of equations: 1278
number of non-zeros in A: 13434
number of non-zeros in A (): 0.822515
number of right-hand sides: 1
< Factors L and U >
number of columns for each panel: 128
number of independent subgraphs: 0
< Preprocessing with state of the art partitioning metis>
number of supernodes: 0
size of largest supernode: 0
number of non-zeros in L: 0
number of non-zeros in U: 0
number of non-zeros in L+U: 0
I do not know what the reason is, the version of my MKL ?
Thanks in advance.
