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When iparm(27)=0:

*** Error in PARDISO ( sequence_ido,parameters) error_num= 8

*** Input check: ia(neqns+1)_new -1 _old 0 are incompatible

*** Input parameters: inconsistent error= 8 max_fac_store_in: 1

matrix_number_in : 1 matrix_type_in : 2

ido_in : 11 neqns_in : 14751

ia(neqns_in+1)-1 : -1 nb_in : 1

And when iparm(27)=1:

*** Error in PARDISO ( sequence_ido,parameters) error_num= 18

*** Input check: unexpected error with working arrays ia and/or ja

To derive the input arrays I've used the following code to extract the sparse storage form from a full upper triangular matrix GLKF(NEQ,NEQ) where nomenclature JA = COLUMNS, IA = ROWINDEX, A = VALUES:

KOUNT=COUNT(GLKF/=0d0)

ALLOCATE ( VALUES(KOUNT), COLUMNS(KOUNT), ROWINDEX(NEQ+1) )

KOUNTER = KOUNT

KOUNT = 0

ROWINDEX(1)=1

DO J=1,NEQ

ROWINDEX(J+1)=ROWINDEX(J)

DO I=1,NEQ

IF (GLKF(J,I)/=0.OR.I==J) THEN

ROWINDEX(J+1)=ROWINDEX(J+1)+1

KOUNT=KOUNT+1

VALUES(KOUNT)=GLKF(J,I)

COLUMNS(KOUNT)=I

END IF

END DO

END DO

Many thanks!

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5 Replies

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Depending on how you call PARDISO, a consistency check would catch this discrepancy.

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IF (GLKF(J,I)/=0.OR.I==J) THEN

If there are some zero values on the principal diagonal when this statement is executed, the statements in the IF block will be executed even for those zero elements.

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Do you know where I can find out more about the various error codes cited in my original post?

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One can see the next line: "ia(neqns_in+1)-1 : -1" so its seem that you have some problem with ia array. Could you print the value of neqns and ia(neqns_in+1) before first pardiso call?

With best regards,

Alexander Kalinkin

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