This is a simple (but large) problem to compare the linear solvers Skyline, SuperLU and PSLDLT on an SGI Altix machine. It consists of a box with a linear-elastic material, constrained on the left end and with an applied pressure on the right end. All tests were limited to one cpu.
Results:
Skyline 6 min 47 sec
SuperLU 3 min 29 sec
PSLDLT 0 min 8 sec
Because of the obvious dominance of PSLDLT over the other two solvers, we have decided not to implement the multi-threaded version of SuperLU at this time, but to implement another solver, Pardiso, which should be more comparable to the speed of PSLDLT.
Results:
Skyline 6 min 47 sec
SuperLU 3 min 29 sec
PSLDLT 0 min 8 sec
Because of the obvious dominance of PSLDLT over the other two solvers, we have decided not to implement the multi-threaded version of SuperLU at this time, but to implement another solver, Pardiso, which should be more comparable to the speed of PSLDLT.
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