Add toolbox to matlab 2012 drivers#

> =AMGsolver(A, PREC, options,b,x) What's behind the toolbox Reduce options.restol and restart the iterative solver AMGsolver. You would like to have a more accurate solution In this case you could recycle a former computed solution, say x, fromДЄ previous call of AMGsolver and use it as initial guess for the next Increase options.maxit to your desired maximum number of iteration steps before using AMGsolver again. Within a certain number of steps, BUT you would accept more iteration steps. The iterative solver AMGsolver terminates with an error message telling you that it did not converge ILUPACK should automatically adapt param.elbow appropriately.ДЇor the iterative solver you want to provide your own initial guess

Starting with ILUPACK V2.2 this error message should no longer occur. When calling AMGfactor, ILUPACK tells you that your memory is insufficient Reduce options.droptol, delete preconditioner byДЄnd rebuild the preconditioner with the revised options This happens if an error message is displayed on exit from AMGsolver. This will release any (also internal) memory that has been allocated for using PREC. If you do not need the preconditioner anymore discard it using AMGdelete. Since ILUPACK has only built a preconditioner, to solve Ax=b we still need to invoke an iterative solver. Then the preconditioner is built using the default options. In the simplest case you would do this as follows Suppose you would like to solve a system Ax=b, using the ILUPACK toolbox

Add toolbox to matlab 2012 drivers#

ILUPACK toolbox for MATLAB ILUPACK toolbox for MATLABДЄfter compiling the mex interface drivers from the ILUPACK directory,ДЄdd the associated system path, e.g., using the MATLAB commandДЄfter that you will able to use the ILUPACK toolbox for MATLAB.