Re: [OMPI users] Help on Mpi derived datatype for class with static members

Thanks every one. > - the "static" data member is shared between all instances of the >  class, so it cannot be part of the MPI datatype (it will likely be >  at a fixed memory location); Yes! I agree that i is global as far as different instances of class is concern. I don't even want it to

Re: [OMPI users] Method for worker to determine its "rank" on a single machine?

The answer is yes - sort of... In OpenMPI, every process has information about not only its own local rank, but the local rank of all its peers regardless of what node they are on. We use that info internally for a variety of things. Now the "sort of". That info isn't exposed via an MPI API at

[OMPI users] Method for worker to determine its "rank" on a single machine?

Is it possible through MPI for a worker to determine: 1. how many MPI processes are running on the local machine 2. within that set its own "local rank" ? For instance, a quad core with 4 processes might be hosting ranks 10, 14, 15, 20, in which case the "local ranks" would be 1,2,3,4.

Re: [hwloc-users] Compiling Hwloc-1.1 on Windows 7 x64 Editiono

Hello, Amna Aslam, le Thu 09 Dec 2010 19:08:21 +0100, a écrit : > This is for the first time i am using mingw64, This is the first time for us too actually. > can you tell me the steps for compiling hwloc using this mingw64. The same as usual: ./configure && make > i am getting this error,

Re: [OMPI users] Help on Mpi derived datatype for class with static members

On Wed, Dec 8, 2010 at 10:04 PM, Santosh Ansumali wrote: >   I am confused with the use of MPI derived datatype for classes with > static member. How to create derived datatype for something like > class test{ > static const int i=5; > double data[5]; > } > This looks like

Re: [OMPI users] curious behavior during wait for broadcast: 100% cpu

Sorry for delay - am occupied with my day job. Yes, that is correct to an extent. When you yield the processor, all that happens is that you surrender the rest of your scheduled time slice back to the OS. The OS then cycles thru its scheduler and sequentially assigns the processor to the line

Re: [OMPI users] curious behavior during wait for broadcast: 100% cpu

> -Original Message- > From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On > Behalf Of Eugene Loh > Sent: 08 December 2010 16:19 > To: Open MPI Users > Subject: Re: [OMPI users] curious behavior during wait for broadcast: > 100% cpu > > I wouldn't mind some

Re: [hwloc-users] Compiling Hwloc-1.1 on Windows 7 x64 Edition

Hi Samuel This is for the first time i am using mingw64, can you tell me the steps for compiling hwloc using this mingw64.i am getting this error, when i type make it says. "fatal error: sys/mman.h no such file or directory". Can you please help me out. Amina . On Thu, Dec 9, 2010 at 12:49

Re: [hwloc-users] Compiling Hwloc-1.1 on Windows 7 x64 Edition

Thanks Samuel, i will try with mingw64. Amna On Thu, Dec 9, 2010 at 11:58 AM, Samuel Thibault wrote: > Amna Aslam, le Thu 09 Dec 2010 17:54:32 +0100, a écrit : > > I am unable to compile hwloc library on windows 7 x64 edition using > CMake. Can > > anyone please help me

Re: [OMPI users] Help on Mpi derived datatype for class with static members

I would imagine block length be sizeof(int) + sizeof(double), with displacement [0, sizeof(int)+1] ? On Thu, Dec 9, 2010 at 7:46 AM, Santosh Ansumali wrote: > On Thu, Dec 9, 2010 at 8:53 PM, George Bosilca > wrote: > > You will have to use the

Re: [hwloc-users] Compiling Hwloc-1.1 on Windows 7 x64 Edition

Amna Aslam, le Thu 09 Dec 2010 17:54:32 +0100, a écrit : > I am unable to compile hwloc library on windows 7 x64 edition using CMake. Can > anyone please help me with compiling this library using CMake or let me know > what steps to follow. Mmm, why using cmake? I don't think autoconf/automake

[hwloc-users] Compiling Hwloc-1.1 on Windows 7 x64 Edition

Hi I am unable to compile hwloc library on windows 7 x64 edition using CMake. Can anyone please help me with compiling this library using CMake or let me know what steps to follow. Thanks Amna

Re: [OMPI users] Help on Mpi derived datatype for class with static members

On Thu, Dec 9, 2010 at 8:53 PM, George Bosilca wrote: > You will have to use the MPI_Type_create_struct > (http://www.open-mpi.org/doc/v1.5/man3/MPI_Type_create_struct.3.php). My doubt is what it means to compute blocklength and displacement for static variable. For

[OMPI users] Open MPI on Cygwin

Hi, I know that you don't try to port Open Mpi to Cygwin at the moment but perhaps you can give me a hint how to proceed. I tried to build openmpi-1.5.1rc1 on Cygwin 1.5.25 with gcc-4 with the following options. ../openmpi-1.5.1rc1r24104/configure --prefix=/usr/local/openmpi-1.5.1-gcc-4 CC=gcc-4

Re: [OMPI users] Help on Mpi derived datatype for class with static members

You will have to use the MPI_Type_create_struct (http://www.open-mpi.org/doc/v1.5/man3/MPI_Type_create_struct.3.php). george. On Dec 8, 2010, at 16:04 , Santosh Ansumali wrote: > Dear all, > I am confused with the use of MPI derived datatype for classes with > static member. How to create