Move all of NixOS to nixos/ in preparation of the repository merge

1 files changed, 40 insertions, 0 deletions

diff --git a/nixos/tests/mpich.nix b/nixos/tests/mpich.nix
new file mode 100644
index 000000000000..d57512ebdfed
--- /dev/null
+++ b/nixos/tests/mpich.nix
@@ -0,0 +1,40 @@
+# Simple example to showcase distributed tests using NixOS VMs.
+
+{ pkgs, ... }:
+
+with pkgs;
+
+{
+  nodes = {
+    master =
+      { config, pkgs, ... }: {
+        environment.systemPackages = [ gcc mpich2 ];
+        #boot.kernelPackages = pkgs.kernelPackages_2_6_29;
+      };
+
+    slave =
+      { config, pkgs, ... }: {
+        environment.systemPackages = [ gcc mpich2 ];
+      };
+  };
+
+  # Start master/slave MPI daemons and compile/run a program that uses both
+  # nodes.
+  testScript =
+    ''
+       startAll;
+
+       $master->succeed("echo 'MPD_SECRETWORD=secret' > /etc/mpd.conf");
+       $master->succeed("chmod 600 /etc/mpd.conf");
+       $master->succeed("mpd --daemon --ifhn=master --listenport=4444");
+
+       $slave->succeed("echo 'MPD_SECRETWORD=secret' > /etc/mpd.conf");
+       $slave->succeed("chmod 600 /etc/mpd.conf");
+       $slave->succeed("mpd --daemon --host=master --port=4444");
+
+       $master->succeed("mpicc -o example -Wall ${./mpich-example.c}");
+       $slave->succeed("mpicc -o example -Wall ${./mpich-example.c}");
+
+       $master->succeed("mpiexec -n 2 ./example >&2");
+    '';
+}