Whatever is convenient and/or follow the "PETSc" standards. Something similar to SNESGetIterationNumber() or KSPGetIterationNumber() would be nice. Ideally I want my code to look like this:
ierr = TaoGetIterationNumber(tao,&its);CHKERRQ(ierr); ierr = PetscPrintf(PETSC_COMM_WORLD, "Number of Tao iterations = %D\n", its); Thanks :) On Fri, Apr 10, 2015 at 5:53 PM, Jason Sarich <[email protected]> wrote: > Hi Justin, I'll get this in. I assume that displaying the number of > iterations with tao_converged_reason is what you are asking for in > particular? Or did you have something else in mind? > > Jason > On Apr 10, 2015 16:42, "Smith, Barry F." <[email protected]> wrote: > >> >> Justin, >> >> Sorry TAO simply doesn't even collect this information currently. But >> yes we should definitely make it available! >> >> Jason, >> >> Could you please add this; almost all the TaoSolve_xxx() have a >> local variable iter; change that to tao->niter (I'm guess this is suppose >> to capture this information) and add a TaoGetIterationNumber() and the uses >> can access this. Also modify at the end of TaoSolve() -tao_converged_reason >> to also print the iteration count. At the same time since you add this you >> can add a tao->totalits which would accumulate all iterations over all the >> solves for that Tao object and the routine TaoGetTotalIterations() to >> access this. Note that TaoSolve() would initialize tao->niter = 0 at the >> top. >> >> Thanks >> >> Barry >> >> >> >> > On Apr 10, 2015, at 4:16 PM, Justin Chang <[email protected]> wrote: >> > >> > Hi all, >> > >> > Is there a way to generically obtain the number of Tao iterations? I am >> looking through the -help options for Tao and I don't see any metric where >> you can output this quantity in the manner that you could for SNES or KSP >> solves. I am currently using blmvm and tron, and the only way I can see >> getting this metric is by outputting -tao_view and/or -tao_monitor and >> manually finding this number. I find this cumbersome especially for >> transient problems where I would like to simply have this number printed >> for each step instead of ending up with unnecessary info. >> > >> > Thanks, >> > >> > >> > -- >> > Justin Chang >> > PhD Candidate, Civil Engineering - Computational Sciences >> > University of Houston, Department of Civil and Environmental Engineering >> > Houston, TX 77004 >> > (512) 963-3262 >> >>
