topic allocation B and X will in Intel® oneAPI Math Kernel Library

Newbie questions on Pardiso : allocate and initialize right-hand-side B and solution X, and sparse formatted B ?

canal_g_ — Mon, 16 Jan 2017 01:02:37 GMT

Hello,

Newbie to MKL/Pardiso. I was running my first program yesterday. Some quick questions on the right hand side B and solution X:
- is it correct that both B and X have to be allocated in every MPI process, and B must be set in every process also ?

- I am actually trying to get inverse of matrix, so the B is an identity matrix. But it seems that there is no way to specify B in a sparse format, in order to save memory. Is it true ?

thank you very much

canal

allocation B and X will

Gennady_F_Intel — Tue, 17 Jan 2017 06:53:39 GMT

allocation B and X will depends on iparm[39]. For example, in the case if iparm[39]==2, The solution vector, A, and RHS elements are distributed between processes in same manner. See documentation for more details.

OIC, thank you

lixin_c_ — Fri, 20 Jan 2017 00:50:01 GMT

OIC, thank you