maspack.solvers

Class DirectSolverTiming

java.lang.Object

maspack.solvers.DirectSolverTiming

public class DirectSolverTiming
extends java.lang.Object

Times the analyze, factor and solve phases of the direct sparse solvers across a range of matrix sizes, using the synthetic 2D and 3D finite element matrices produced by FemMatrixGenerator.

Usage:

  java maspack.solvers.DirectSolverTiming \
     [-elem hex|tet|quad|tri] [-gridres spec,spec,...] [-sizes n,n,...] \
     [-solvers Pardiso,Mumps,...] [-threads n] [-reps n] [-nrhs n] \
     [-cons n] [-consRatio r] [-verbose]
 

where -gridres gives the grid resolutions to test and -sizes instead gives approximate matrix sizes. Each -gridres specification takes the form RX[xRY[xRZ]], where RX, RY and RZ are the numbers of nodes along the x, y and z axes. Missing resolutions default to the previous one, so that 16 means 16x16x16 and 40x8 means 40x8x8. RZ is ignored for 2D element types.

-cons appends the indicated number of constraint rows to produce a symmetric indefinite KKT matrix, while -consRatio instead gives the approximate ratio of constraints to the overall matrix size; if both are specified, the last one prevails. -reps sets the number of times the factor and solve phases are repeated (the fastest time is reported).

Constructor Summary

Constructors

Constructor and Description
DirectSolverTiming()

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String[] args)
void	run()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DirectSolverTiming

public DirectSolverTiming()

Method Detail

run

public void run()

main

public static void main(java.lang.String[] args)