110 lines
3.4 KiB
Nix
110 lines
3.4 KiB
Nix
######################################################################################
|
|
# Saiph, granularity experiment:
|
|
#
|
|
# App:Heat 3D - garlic/tampi+isend+oss+task+simd branch
|
|
# App details:
|
|
# 3D mesh of ~400*400*400 points
|
|
# nbgx = global blocks in the X dimension
|
|
# nbgy = global blocks in the Y dimension
|
|
# nbgz = global blocks in the Z dimension
|
|
# --> nbgx*nbgy*nbgz = global distributed blocks
|
|
# nbly = local blocks in the Y dimension
|
|
# nblz = local blocks in the Z dimension
|
|
# --> nbly*nblz = local blocks (#tasks)
|
|
#
|
|
# Granularity experiment configuration:
|
|
# Single-core run
|
|
# MPI binded to sockets: MPI procs = 2
|
|
# Mesh distributed across third dimension to ensure contiguous communications
|
|
# --> nbgx = 1, nbgy = 1
|
|
# First dimension cannot be locally blocked (simd reasons)
|
|
# Second and third dimension local blocking limited by local mesh size
|
|
#
|
|
######################################################################################
|
|
|
|
# Common packages, tools and options
|
|
{
|
|
stdenv
|
|
, stdexp
|
|
, bsc
|
|
, targetMachine
|
|
, stages
|
|
}:
|
|
|
|
with stdenv.lib;
|
|
|
|
let
|
|
|
|
#*** Variable configurations ***
|
|
varConf = with bsc; {
|
|
# Local blocks per dimension
|
|
nbl1 = [ 1 2 3 4 6 12 24 48 96 ];
|
|
nbl2 = [ 1 2 3 4 6 12 24 48 96 ];
|
|
};
|
|
|
|
#*** Generate the complete configuration for each unit ***
|
|
genConf = with bsc; c: targetMachine.config // rec {
|
|
|
|
# Experiment, units and job names
|
|
expName = "saiph-granularity";
|
|
unitName = "${expName}-N${toString nodes}" + "nbg_${toString nbgx}-${toString nbgy}-${toString nbgz}" + "nbl_1-${toString nbly}-${toString nblz}";
|
|
jobName = "${unitName}";
|
|
|
|
# saiph options
|
|
nodes = 1;
|
|
enableManualDist = true; # allows to manually set nbg{x-y-z}
|
|
nbgx = 1;
|
|
nbgy = 1;
|
|
nbgz = nodes*2; # forcing distribution by last dim
|
|
nblx = 1; # simd reasons
|
|
nbly = c.nbl1; # takes values from varConf
|
|
nblz = c.nbl2; # takes values from varConf
|
|
mpi = impi;
|
|
gitBranch = "garlic/tampi+isend+oss+task+simd";
|
|
gitCommit = "8052494d7dc62bef95ebaca9938e82fb029686f6"; # fix a specific commit
|
|
rev = "0";
|
|
|
|
# Repeat the execution of each unit 30 times
|
|
loops = 30;
|
|
|
|
# Resources
|
|
inherit (targetMachine.config) hw;
|
|
qos = "debug";
|
|
ntasksPerNode = hw.socketsPerNode; # MPI binded to sockets
|
|
cpusPerTask = hw.cpusPerSocket; # Using the 24 CPUs of each socket
|
|
};
|
|
|
|
#*** Compute the final set of configurations ***
|
|
# Compute the array of configurations: cartesian product of all factors
|
|
allConfigs = stdexp.buildConfigs {
|
|
inherit varConf genConf;
|
|
};
|
|
# Filter to remove non-desired configurations:
|
|
# --> tasks/proc < 0.5
|
|
# --> nblz > 50
|
|
configs = filter (el: if ((builtins.mul el.nbly el.nblz) < (builtins.mul 0.5 el.cpusPerTask) || el.nblz > 50) then false else true) allConfigs;
|
|
|
|
#*** Sets the env/argv of the program ***
|
|
exec = {nextStage, conf, ...}: with conf; stages.exec {
|
|
inherit nextStage;
|
|
env = ''
|
|
export OMP_NUM_THREADS=${toString hw.cpusPerSocket}
|
|
'';
|
|
};
|
|
|
|
#*** Configure the program according to the app ***
|
|
program = {nextStage, conf, ...}:
|
|
let
|
|
customPkgs = stdexp.replaceMpi conf.mpi;
|
|
in
|
|
customPkgs.apps.saiph.override {
|
|
inherit (conf) enableManualDist nbgx nbgy nbgz nblx nbly nblz mpi gitBranch gitCommit;
|
|
};
|
|
|
|
#*** Add stages to the pipeline ***
|
|
pipeline = stdexp.stdPipeline ++ [ exec program ];
|
|
|
|
in
|
|
stdexp.genExperiment { inherit configs pipeline; }
|
|
|