bscpkgs/garlic/exp/nbody/granularity-mpi.nix
2020-11-03 19:10:00 +01:00

75 lines
1.6 KiB
Nix

{
stdenv
, stdexp
, bsc
, targetMachine
, stages
}:
with stdenv.lib;
let
# Initial variable configuration
varConf = with bsc; {
blocksize = [ 128 256 512 1024 2048 4096 ];
};
machineConfig = targetMachine.config;
# Generate the complete configuration for each unit
genConf = with bsc; c: targetMachine.config // rec {
expName = "nbody.test";
unitName = "${expName}.nb-${toString nblocks}";
inherit (machineConfig) hw;
# nbody options
particles = 1024 * 64;
timesteps = 10;
inherit (c) blocksize;
totalTasks = ntasksPerNode * nodes;
particlesPerTask = particles / totalTasks;
cc = icc;
mpi = impi;
gitBranch = "garlic/mpi+send";
# Repeat the execution of each unit 30 times
loops = 10;
# Resources
qos = "debug";
ntasksPerNode = 48;
nodes = 1;
time = "02:00:00";
cpuBind = "sockets,verbose";
jobName = "bs-${toString blocksize}-${gitBranch}-nbody";
# Experiment revision: this allows a user to run again a experiment already
# executed
rev = 0;
};
# Compute the array of configurations
configs = stdexp.buildConfigs {
inherit varConf genConf;
};
exec = {nextStage, conf, ...}: with conf; stages.exec {
inherit nextStage;
argv = [ "-t" timesteps "-p" particles ];
};
program = {nextStage, conf, ...}: with conf;
# FIXME: This is becoming very slow:
#let
# customPkgs = stdexp.replaceMpi conf.mpi;
#in
bsc.garlic.apps.nbody.override {
inherit cc blocksize mpi gitBranch;
};
pipeline = stdexp.stdPipeline ++ [ exec program ];
in
stdexp.genExperiment { inherit configs pipeline; }