Hi, I have a cluster with nodes of 2 sockets of 4 cores+1 GPU.
Is there a way to run a calculation with 4*N MPI tasks where my matrix is first built outside PETSc, then to solve the linear system using PETSc Mat, Vec, KSP on only N MPI tasks to adress efficiently the N GPUs ? I am playing with the communicators without success, but I am surely confusing things... Thanks, Pierre -- *Trio_U support team* Marthe ROUX (01 69 08 00 02) Saclay Pierre LEDAC (04 38 78 91 49) Grenoble
