[mpich-discuss] questions about MPI_Comm_spawn

[Jayesh Krishna]

Hi,
 There is no option in MPICH2 for you to do that automatically. Did you try "FreeConsole() + AllocConsole()"?

Regards,
Jayesh

----- Original Message -----
From: "toufik hadjazi" <h_toufik7 at hotmail.fr>
To: jayesh at mcs.anl.gov, mpich-discuss at mcs.anl.gov
Sent: Saturday, April 14, 2012 4:59:17 AM
Subject: Re: [mpich-discuss] questions about MPI_Comm_spawn


Hi Jayesh, 

thanks for your answers, i solved the first problem but not the second one, i think my question wasn't clear enough: i have an application which uses MPI_Comm_spawn, when the call is done the parent and the spwaned child continue to run on the same console (cmd window) but i need to separate them (each one in a separate cmd window), i don't know if this is possible. 

Thanks & best Regards, 
Toufik. 


> Date: Thu, 12 Apr 2012 09:58:59 -0500 
> From: jayesh at mcs.anl.gov 
> To: mpich-discuss at mcs.anl.gov 
> CC: h_toufik7 at hotmail.fr 
> Subject: Re: [mpich-discuss] questions about MPI_Comm_spawn 
> 
> Hi, 
> Argh, I missed your first question. The suggestion (-localonly/localroot) was for the second (console...) question. 
> Please take a look at "https://svn.mcs.anl.gov/repos/mpi/mpich2/trunk/test/mpi/spawn/spawnargv.c" for information on how to pass arguments to spawn. 
> 
> Regards, 
> Jayesh 
> 
> ----- Original Message ----- 
> From: "toufik hadjazi" <h_toufik7 at hotmail.fr> 
> To: mpich-discuss at mcs.anl.gov 
> Sent: Thursday, April 12, 2012 9:39:31 AM 
> Subject: Re: [mpich-discuss] questions about MPI_Comm_spawn 
> 
> 
> 
> Hi Jayesh, 
> 
> when i tried these options i got the message: 
> 
> unable to read the cmd header on the pmi context, Error = -1. 
> Error posting readv, An existing connection was forcibly closed by the remote host.(10054) 
> job aborted: 
> rank: node: exit code[: error message] 
> 0: Toufik-PC: 255: process 0 exited without calling finalize 
> 
> and about my second question, is it possible? 
> 
> best Regards, 
> Toufik. 
> 
> 
> > Date: Thu, 12 Apr 2012 09:22:52 -0500 
> > From: jayesh at mcs.anl.gov 
> > To: mpich-discuss at mcs.anl.gov 
> > CC: h_toufik7 at hotmail.fr 
> > Subject: Re: [mpich-discuss] questions about MPI_Comm_spawn 
> > 
> > Hi, 
> > Did you try launching your job with the "-localonly" option (Also try "-localroot")? 
> > 
> > Regards, 
> > Jayesh 
> > 
> > ----- Original Message ----- 
> > From: "toufik hadjazi" <h_toufik7 at hotmail.fr> 
> > To: mpich-discuss at mcs.anl.gov 
> > Sent: Thursday, April 12, 2012 7:34:21 AM 
> > Subject: [mpich-discuss] questions about MPI_Comm_spawn 
> > 
> > 
> > 
> > Hi, 
> > 
> > I am using MPICH2 on windows 7, and I have two questions: 
> > 1- when i try to launch a process with MPI_comm_spawn using MPI_ARGV_NULL, it work normally but when i use an array of arguments the job abort; the call for the function is like that : 
> > 
> > char *arg_array[4]; 
> > for (int i=0; i<4; i++) 
> > arg_array[i] = new char[255]; 
> > 
> > int level = 15, next = 4, range = 5; 
> > itoa(level, arg_array[0], 10); 
> > itoa(next, arg_array[1], 10); 
> > itoa(range, arg_array[2], 10); 
> > 
> > MPI_Comm_spawn("testMPI.exe", arg_array, 1, MPI_INFO_NULL, 0, MPI_COMM_SELF, &intercom, MPI_ERRCODES_IGNORE); 
> > 
> > 2- Is it possible to launch the spawned child on another console (a new console window in the same pc); maybe using the info keys? 
> > 
> > best Regards, 
> > Toufik, 
> > 
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