On Thu, Oct 16, 2008 at 5:42 AM, Franz Th. Langer <eplanung at t-online.de> wrote: > Hi Satish, > > thanks very much for quick infos! > > I understand that I have to use mpirun or mpiexec. > (I still dont know how the system knows which procs can be used?) > > (in rexecshell one can fill in a list with the node-names) > > my questions arise out of the following situation: > > under cygwin: > > 1. I downloaded Petsc and made the necc. definitions > > 2. make all (everything ok!) > > 3. make test ( (everything ok!) > > under the tests there are also test for parallelizations! > > I still dont know how Petsc was doing this tests???
I assume you are using the latest release. In bmake/$PETSC_ARCH/petscconf there is a definition of MPIRUN (or MPIEXEC) which is the location of that program and it used to run the test by make. Matt > I may have missed something , but I never found a call to mpirun or mpiexec? > > perhaps you can explain it? > > Best regards > Franz > > > > Satish Balay wrote: > > On Thu, 16 Oct 2008, Franz Th. Langer wrote: > > > > Hi, > > System: Windows 2000, cygwin > parallel computation with MPI > > (I am a newcomer to cygwin, I wrote a lot > of par. progs for VC 6.0 +MPI.) > > compiling and linking of my par. petsc-program under cygwin is ok! > > I can run the program on 1 proc only! > > when I want to use more then 1 proc I am using Rexecshell! > than the program querries about a wrong commandline? > > questions: > > -under cygwin: do I have to use something else than Rexecshell? > -what has than to be installed/initiated on the other procs? > > > Cygwin is used only to build libraries. If you built PETSc with MPI - > then you have to use the MPI startup mecanism [i.e mpiexec or mpirun] > to start parallel MPI jobs. > > Satish > > > > > -- > Mit freundlichen Gr??en > > Dipl.-Ing. Franz Theodor Langer (Gesch?ftsf?hrer) > ----------------------------------------------------------------- > E_Planung GmbH > Planung + Berechnung f?r Wissenschaft und Technik im Ingenieurbau > > Schl?sselbergstra?e 30, 81673 M?nchen, Tel. 089/454933-0 Fax -14 > Gesch?ftsnummer: HRB 90116, Gerichtsstand: M?nchen > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener
