Dear Community!<br><br>I am using the latest version of MPICH2 for Windows (the problem occurs also on 1.0.8). I have 8 computers connected over giga-bit switch. I have written a program that uses MPI for paralelization. When I run a program on one or two computers. Everything works OK (lets say most of the time). When I run it on 4 computers, sometimes it works and sometimes it does not. The error that I get is:<br>
launch failed: CreateProcess(X:\mpi_program.exe) on 'computerX' failed, error 3 - The system cannot find the path specified.<br><br>Most times I get this error for one computer in machine list, but it can also happen for 2 or more computers etc.<br>
<br>If I increase number of computers over 4. I get this error almost every time. With 6 or more this happens every time. It looks like the higher the number the worse it gets. I would really like to make this work. Has anybody had such experiences and what was the solution.<br>
<br>It looks like the computer tries to start the program before the mapped drive would be made operational. Is there any way to increase this delay? Or are there any other settings that needs to be set?<br><br>There are some other errors that I occasionally get, but this is the most important one (for now).<br>
<br>Systems:<br>Windows XP SP3 (on all computers)<br>Installed latest MPICH2<br>Connection giga-bit NICs (local network) over switch<br><br>Example of run command: "C:\Program Files\MPICH2\bin\mpiexec.exe" -map X:\\computer1\MPI -wdir X:\ -n 4 -machinefile "C:\Program Files\MPICH2\bin\machines.txt" -noprompt X:\mpi_program.exe<br>
<br>\\computer1\MPI is a shared folder on computer1 from which the command is run<br><br>machines.txt consists of following lines:<br>computer1 -ifhn 192.168.1.1<br>computer2 -ifhn 192.168.1.2<br>...<br>computer8 -ifhn 192.168.1.8<br>
<br>These are the NICs I would like MPI to use them for communication. The order of computers in machines.txt is irrelevant (it happens on every combination).<br><br>Regards<br>