40 lines
1.1 KiB
Nix
40 lines
1.1 KiB
Nix
# Simple example to showcase distributed tests using NixOS VMs.
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{ pkgs, ... }:
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with pkgs;
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{
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nodes = {
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master =
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{ config, pkgs, ... }: {
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environment.systemPackages = [ gcc mpich2 ];
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#boot.kernelPackages = pkgs.kernelPackages_2_6_29;
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};
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slave =
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{ config, pkgs, ... }: {
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environment.systemPackages = [ gcc mpich2 ];
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};
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};
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# Start master/slave MPI daemons and compile/run a program that uses both
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# nodes.
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testScript =
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''
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startAll;
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$master->mustSucceed("echo 'MPD_SECRETWORD=secret' > /etc/mpd.conf");
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$master->mustSucceed("chmod 600 /etc/mpd.conf");
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$master->mustSucceed("mpd --daemon --ifhn=master --listenport=4444");
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$slave->mustSucceed("echo 'MPD_SECRETWORD=secret' > /etc/mpd.conf");
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$slave->mustSucceed("chmod 600 /etc/mpd.conf");
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$slave->mustSucceed("mpd --daemon --host=master --port=4444");
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$master->mustSucceed("mpicc -o example -Wall ${./mpich-example.c}");
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$slave->mustSucceed("mpicc -o example -Wall ${./mpich-example.c}");
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$master->mustSucceed("mpiexec -n 2 ./example >&2");
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'';
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}
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