lix/tests/parallel.nix.in
Eelco Dolstra c8d3882cdc * True parallel builds. Nix can now run as many build jobs in
parallel as possible (similar to GNU Make's `-j' switch).  This is
  useful on SMP systems, but it is especially useful for doing builds
  on multiple machines.  The idea is that a large derivation is
  initiated on one master machine, which then distributes
  sub-derivations to any number of slave machines.  This should not
  happen synchronously or in lock-step, so the master must be capable
  of dealing with multiple parallel build jobs.  We now have the
  infrastructure to support this.

  TODO: substitutes are currently broken.
2004-05-11 18:05:44 +00:00

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Nix

let {
mkDrv = text: inputs: derivation {
name = "parallel";
system = "@system@";
builder = "@shell@";
args = ["-e" "-x" ./parallel.builder.sh];
shared = "@extra1@";
inherit text inputs;
};
a = mkDrv "a" [];
b = mkDrv "b" [a];
c = mkDrv "c" [a];
d = mkDrv "d" [a];
e = mkDrv "e" [b c d];
body = e;
}