topic Fabio, what mkl version do in Intel® oneAPI Math Kernel Library

PSSYGVX - LWORK parameter number 28 had an illegal value

Fábio_A_ — Wed, 17 Jan 2018 02:09:11 GMT

Dear Intel Forum,

I am trying to use PSSYGVX, however if a use a matrix larger than 5000 everytime the function returns:

PSSYGVX parameter number 28 had an illegal value
The info parameter is -28

I tryed to use lwork = -1 (which i believe is the 28 parameter) to ask wich is the optimum value, even with this number a recive the same mensagem. Another values was tested without success. Please, this could be a memory issue ? There any way to debug this ?

Best regards

Fabio, what mkl version do

Gennady_F_Intel — Wed, 17 Jan 2018 02:45:16 GMT

Fabio, what mkl version do you use and the problem happens when problem size >=5K?

Dear Dennady,

Fábio_A_ — Wed, 17 Jan 2018 10:06:00 GMT

Dear Gennady,

The MKL version is 11.3.3.

Fabio, you may try the latest

Gennady_F_Intel — Wed, 17 Jan 2018 12:38:55 GMT

Fabio, you may try the latest available version of MKL 2018 u1 or please give us the reproducer and we will check the problem on our side.

Dear Gennady,

Fábio_A_ — Wed, 17 Jan 2018 12:52:00 GMT

Dear Gennady,

I just install parallel studio 2018 and the same error occurs.

Attached the example, the message is:

PSSYGVX parameter number 28 had an illegal value
parameter number 28 had an illegal value

Best regards.