Conflict between Pardiso and Microsoft ACE OLEDB?

Hello,

I'm working in C++ with Visual Studio 2010 and Intel ComposerXE-2011

In my program, I do a symbolic and a numeric factorization of a matrix A. After that, I do a lot of solve (Ax=b) with different b (Using intel mkl Pardiso).

Previously, my program was using Jet OLEDB 4.0 do to other job and all work find.

1 week ago, we change from Jet OLEDB 4.0 to ACE OLEDB 12.0. After this change, solve step of Ax=b (phase =33) take 3 times longer to execute. If I run my test many times, I saw some little difference in results of Ax=b. All were correct when using Jet OLEDB

Anyone else have this problem?

Anyone have a idea of what is happening? Conflict with OpenMP? Conflict with other libraries?

Thanks

Marc