Re: [OMPI users] machine exited on signal 11 (Segmentation fault).

2012-04-17 Thread Rohan Deshpande
After using malloc i am getting following error *** Process received signal *** Signal: Segmentation fault (11) Signal code: Address not mapped (1) Failing at address: 0x1312d08 [ 0] [0x5e840c] [ 1] /usr/local/lib/openmpi/mca_btl_tcp.so(+0x5bdb) [0x119bdb] /usr/local/lib/libopen-pal.so.0(+0x1

Re: [OMPI users] Sharing (not copying) data with OpenMPI?

2012-04-17 Thread Rayson Ho
On Tue, Apr 17, 2012 at 2:26 AM, jody wrote: > As to OpenMP: i already make use of OpenMP in some places (for > instance for the creation of the large data block), > but unfortunately my main application is not well suited for OpenMP > parallelization.. If MPI does not support this kind of progra

Re: [OMPI users] OpenMPI fails to run with -np larger than 10

2012-04-17 Thread Jeffrey Squyres
Moving the conversation to this bug: https://svn.open-mpi.org/trac/ompi/ticket/3076 On Apr 16, 2012, at 4:57 AM, Seyyed Mohtadin Hashemi wrote: > I recompiled everything from scratch with GCC 4.4.5 and 4.7 using OMPI 1.4.5 > tarball. > > I did some tests and it does not seem that i can mak

Re: [OMPI users] MPI_Send, MPI_Recv problem on Mac and Linux

2012-04-17 Thread Jeffrey Squyres
Sorry for the delay in replying; I was out last week. MPI_SEND and MPI_RECV take pointers to the buffer to send and receive, respectively. When you send a scalar variable, like an int, you get the address of the buffer via the & operator (e.g., MPI_Send(&i, ...)). When you send a new'ed/malloc

Re: [OMPI users] ompi-restart failed && ompi-migrate

2012-04-17 Thread kidd
Hello ,thank your reply,but I still can't  Ompi-Restart  Multiple-Node. I checked my Node(ubuntu11.04  && openmpi1.5.5), they did not install the  prelink. Whether there are other reasons failed to ompi-restart? ps: if Ompi-Restart  Multiple-Node can be successful. Can start in another new nod

[OMPI users] scope of MPI_publish/Lookup_name of openmpi on windows 7

2012-04-17 Thread toufik hadjazi
Hi, does openmpi (installed on windows 7) support name publication throw different jobs? if yes, how to make two different jobs communicate using the name of the server ? best regards,Toufik.

Re: [OMPI users] configuration of openmpi-1.5.4 with visual studio

2012-04-17 Thread toufik hadjazi
Hi Shiqing, thanks for your answers, i cleaned the registry from any trace of mpich and HPC pack then openmpi worked well. best ragards,Toufik. List-Post: users@lists.open-mpi.org Date: Mon, 16 Apr 2012 20:12:46 +0200 From: f...@hlrs.de To: h_touf...@hotmail.fr CC: us...@open-mpi.org Subject: Re

Re: [OMPI users] Open MPI 1.4.5 and CUDA support

2012-04-17 Thread Rolf vandeVaart
Yes, they are supported in the sense that they can work together. However, if you want to have the ability to send/receive GPU buffers directly via MPI calls, then I recommend you get CUDA 4.1 and use the Open MPI trunk. http://www.open-mpi.org/faq/?category=building#build-cuda Rolf From: use

Re: [OMPI users] Sharing (not copying) data with OpenMPI?

2012-04-17 Thread Sebastian Rettenberger
Hi RMA operations exist since MPI 2.0. There are some new functions in MPI 3.0, but I don't think you will need them. I'm currently working on a library that provides access to large grids. It uses RMA and it works quite well with MPI 2.0. Best regards, Sebastian > Hi > > Thank You all for y

Re: [OMPI users] machine exited on signal 11 (Segmentation fault).

2012-04-17 Thread Jeffrey Squyres
Try malloc'ing your array instead of creating it statically on the stack. Something like: int *data; int main(..) { { data = malloc(ARRAYSIZE * sizeof(int)); if (NULL == data) { perror("malloc"); exit(1); } // ... } On Apr 17, 2012, at 5:05 AM, Rohan Deshpande

[OMPI users] machine exited on signal 11 (Segmentation fault).

2012-04-17 Thread Rohan Deshpande
Hi, I am trying to distribute large amount of data using MPI. When I exceed the certain data size the segmentation fault occurs. Here is my code, #include "mpi.h" #include #include #include #define ARRAYSIZE200 #define MASTER0 int data[ARRAYSIZE]; int main(int argc, ch

Re: [OMPI users] Sharing (not copying) data with OpenMPI?

2012-04-17 Thread jody
Hi Thank You all for your replies. I'll certainly look into the MPI 3.0 RMA link (out of pure interest) but i am afraid i can't go bleeding edge, because my application will also have to run on an other machine. As to OpenMP: i already make use of OpenMP in some places (for instance for the creat

[OMPI users] Open MPI 1.4.5 and CUDA support

2012-04-17 Thread Rohan Deshpande
Hi, I am using Open MPI 1.4.5 and I have CUDA 3.2 installed. Anyone knows whether CUDA 3.2 is supported by OpenMPI? Thanks