Unclassifiable error on second call to dss_reorder

[potaman]

I am solving a nonlinear problem that requires me to construct and solve a matrix many times for which I wish to use dss in MKL10.2.6.038.The code is in fortran 90 and I use ifort 11.0.046.The structure of the matrix changes and hence the solver has to be deleted and reconstructed at every iteration. When I run my code , it runs fine the first time, however on the second iteration, dss_reorder crashes with an unclassifiable error.
This happens irrespective of whether the matrix is the same or not. the second call to dss_reorder fails. Any ideas?

[potaman]

I tried changing to 10.3.3.174 and got that a Memory Overwrite in lda-m gap error. any idea what this means?

[Gennady_F_Intel]

"The structure of the matrix changes and hence the solver has to be deleted and reconstructed at every iteration" - what do you mean by "the solver has to be deleted"? Please show thow order of invoking dss routines and be much better if you give us the test case.

--Gennady

[potaman]

Step 1 .

At each time step do,

error = dss_create(handle,MKL_DSS_DEFAULTS)

error = dss_define_structure(handle,MKL_DSS_NON_SYMMETRIC,ia,n,n,ja,nnz)

dss_reorder(handle,MKL_DSS_AUTO_ORDER,perm)

!! then for a number of iterations I do.

error = dss_solve_real(handle,MKL_DSS_DEFAULTS,b,1,x)

!! After the code has converged

error = dss_delete(handle,MKL_DSS_DEFAULTS)

At the first time step this works fine. at the second time step . I am able to create the solver and define its structure. but when the call is made to dss_reorder, I get

Memory overwrite in lda-m gap: loc( -65536, 21322608) = 0.0000000 , Invalid message level

[Konstantin_A_Intel]

Hi,

Where do you call dss_factor?

Regards,

Konstantin