HPL run time problems!! Help Please

Susan Blackford susan at cs.utk.edu
Thu Aug 23 16:17:45 EDT 2001


Hi,
Your problem has nothing whatsoever to do with HPL.  I would
suggest typing "man mpirun".  As taken from the manpage,
you will see that the option -machinefile requires a file
to be specified, of which you have not supplied.  The option
-np <np> requires a blank space between the -np and the number
of processors specified. eg.,  -np 4

     -machinefile <machine-file name>
          - Take the list of possible machines to run on from the
          file <machine-file name>
     -np <np>
          - specify the number of processors to run on

Susan


Eswar Dev wrote:
> 
> Hi!
>  With reference to reply to my previous message
> regarding problems HPl run time problems.
> This is my command line:
> [eswar at atlantis Linux_ATHLON_CBLAS]$
> /usr/local/mpich-1.2.1/bin/mpirun -machinefile -np4
> xhpl*
> 
> I change the number of processes from 4 up to 12 but
> the error remain to be same. We have 12 nodes for the
> cluster.
> -Eswarkumar
> MS Mechanical Engineering
> Old Dominion University
> WEB site for Atlantis: http://atlantis.engr.odu.edu
> _______________________________________________________
> --- Felix Rauch <rauch at inf.ethz.ch> wrote:
> > On Tue, 21 Aug 2001, Eswar Dev wrote:
> > > Can some one solve this problem for me, need help
> > > regarding HPL. I have sucessfully built hpl
> > executable
> > > xhpl using CBLAS.
> > > But I get these run time errors using mpirun
> > command
> > >
> > > HPL ERROR from process # 0, on line 408 of
> > function
> > > HPL_pdinfo:
> > > >>> Need at least 4 processess for these tests<<<
> >
> > Do you have to right number of nodes/processors in
> > your mpirun
> > command? It seems that you configured your HPL.dat
> > to use 4 nodes, but
> > supply another number to the mpirun command.
> >
> > > HPL ERROR from process # 0, on line 610 of
> > function
> > > HPL_pdinfo:
> > > >>> Illegal input in file HPL.dat. Exiting ... <<<
> >
> > I don't know if this has to do with the above error.
> > Probably you
> > should give us your command line on the part of your
> > HPL.dat.
> >
> > - Felix
> > --
> > Felix Rauch                      | Email:
> > rauch at inf.ethz.ch
> > Institute for Computer Systems   | Homepage:
> > http://www.cs.inf.ethz.ch/~rauch/
> > ETH Zentrum / RZ H18             | Phone: ++41 1 632
> > 7489
> > CH - 8092 Zuerich / Switzerland  | Fax:   ++41 1 632
> > 1307
> >
> 
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