[OMPI users] Where is the error? (MPI program in fortran)

Hello everybody I implemented a parallel simulated annealing algorithm in fortran. The algorithm is describes as follows 1. The MPI program initially generates P processes that have rank 0,1,...,P-1. 2. The MPI program generates a starting point and sends it for all processes set T=T03. At the

Re: [OMPI users] Where is the error? (MPI program in fortran)

array when #temps > 5 >> >> >> >> >> On Tue, Apr 15, 2014 at 10:46 AM, Oscar Mojica > <mailto:o_moji...@hotmail.com>> wrote: >> >>Hello everybody >> >>I implemented a parallel simulated annealing algorithm in fort

Re: [OMPI users] Where is the error? (MPI program in fortran)

> * - stack -1 > * - nofile 4096 > > See 'man limits.conf' for details. > > If it is a cluster, and this should be set on all nodes, > and you may need to ask your system administrator to do it. > > I hope this helps, > Gus Correa >

Re: [OMPI users] Where is the error? (MPI program in fortran)

memlock -1 > > * - stack -1 > > * - nofile 4096 > > > > See 'man limits.conf' for details. > > > > If it is a cluster, and this should be set on all nodes, > > and you may need to ask your system administrator to do it.

[OMPI users] Running a hybrid MPI+openMP program

Hello everybody I am trying to run a hybrid mpi + openmp program in a cluster. I created a queue with 14 machines, each one with 16 cores. The program divides the work among the 14 processors with MPI and within each processor a loop is also divided into 8 threads for example, using openmp. Th

Re: [OMPI users] Running a hybrid MPI+openMP program

ality (I'm assuming you're using Open MPI > > 1.8.x)? > > > > You can try "mpirun --bind-to none ...", which will have Open MPI not bind > > MPI processes to cores, which might allow OpenMP to think that it can use > > all the cores, and therefore

Re: [OMPI users] Running a hybrid MPI+openMP program

> command line or inside the job script in #$ lines as job requests. This would > mean to collect slots in bunches of OMP_NUM_THREADS on each machine to reach > the overall specified slot count. Whether OMP_NUM_THREADS or n times > OMP_NUM_THREADS is allowed per machine needs to be disc

Re: [OMPI users] Running a hybrid MPI+openMP program

mails, your advices had been very useful PS: The version of SGE is OGS/GE 2011.11p1 Oscar Fabian Mojica Ladino Geologist M.S. in Geophysics > From: re...@staff.uni-marburg.de > Date: Fri, 15 Aug 2014 20:38:12 +0200 > To: us...@open-mpi.org > Subject: Re: [OMPI users] Running a hybrid M

Re: [OMPI users] Running a hybrid MPI+openMP program

27;m learning a lot Oscar Fabian Mojica Ladino Geologist M.S. in Geophysics > From: re...@staff.uni-marburg.de > Date: Tue, 19 Aug 2014 19:51:46 +0200 > To: us...@open-mpi.org > Subject: Re: [OMPI users] Running a hybrid MPI+openMP program > > Hi, > > Am 19.08.2014

[OMPI users] Rounding errors and MPI

with simple precision. Any idea what may be going on? I do not know if this is related to MPI Oscar Mojica Geologist Ph.D. in Geophysics SENAI CIMATEC Supercomputing Center Lattes: http://lattes.cnpq.br/0796232840554652 ___ users mailing list users@lists

Re: [OMPI users] Rounding errors and MPI

Thanks guys for your answers. Actually, the optimization was not disabled, and that was the problem, compiling it with -o0 solves it. Sorry. Oscar Mojica Geologist Ph.D. in Geophysics SENAI CIMATEC Supercomputing Center Lattes: http://lattes.cnpq.br/0796232840554652

Re: [OMPI users] Rounding errors and MPI

improve the consistency and reproducibility of floating-point results while limiting the impact on performance. My program is quite large, so I preferred to use this option because there are certainly other problems that are not only related to reassociation. Oscar Mojica Geologist Ph.D. in