Simplify saiph numcomm experiment
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53dca32469
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@ -1,188 +1,61 @@
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{
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stdenv
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, nixpkgs
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, pkgs
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, genApp
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, genConfigs
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, runWrappers
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, stdexp
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, bsc
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, targetMachine
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, stages
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}:
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with stdenv.lib;
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let
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# Set variable configuration for the experiment
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varConfig = {
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devMode = [ true ];
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numComm = [ 1 ];
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# Configurations for each unit (using the cartesian product)
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confUnit = with bsc; {
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numComm = [ 1 2 ];
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};
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# Common configuration
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common = {
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# Compile time nbody config
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# Configuration for the complete experiment
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confExperiment = with bsc; {
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# saiph options
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devMode = false;
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mpi = impi;
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gitBranch = "garlic/tampi+isend+oss+task+simd";
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mpi = pkgs.bsc.impi;
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# Repeat the execution of each unit 30 times
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loops = 100;
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# Resources
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ntasksPerNode = "2";
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nodes = "1";
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# Stage configuration
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enableSbatch = true;
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enableControl = true;
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enableExtrae = false;
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enablePerf = false;
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# MN4 path
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nixPrefix = "/gpfs/projects/bsc15/nix";
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ntasksPerNode = 2;
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nodes = 1;
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cpuBind = "sockets,verbose";
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};
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# Compute the cartesian product of all configurations
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configs = map (conf: conf // common) (genConfigs varConfig);
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stageProgram = stage:
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if stage ? programPath
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then "${stage}${stage.programPath}" else "${stage}";
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w = runWrappers;
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sbatch = {stage, conf, ...}: with conf; w.sbatch (
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# Allow a user to define a custom reservation for the job in MareNostrum4,
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# by setting the garlic.sbatch.reservation attribute in the
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# ~/.config/nixpkgs/config.nix file. If the attribute is not set, no
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# reservation is used. The user reservation may be overwritten by the
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# experiment, if the reservation is set like with nodes or ntasksPerNode.
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optionalAttrs (pkgs.config ? garlic.sbatch.reservation) {
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inherit (pkgs.config.garlic.sbatch) reservation;
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} // {
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program = stageProgram stage;
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exclusive = true;
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time = "02:00:00";
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qos = "debug";
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jobName = "saiph";
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inherit nixPrefix nodes ntasksPerNode;
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}
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);
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control = {stage, conf, ...}: with conf; w.control {
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program = stageProgram stage;
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loops = 100;
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# Compute the array of configurations
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configs = stdexp.buildConfigs {
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var = confUnit;
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fixed = targetMachine.config // confExperiment;
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};
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srun = {stage, conf, ...}: with conf; w.srun {
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program = stageProgram stage;
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srunOptions = "--cpu-bind=verbose,sockets";
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inherit nixPrefix;
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};
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statspy = {stage, conf, ...}: with conf; w.statspy {
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program = stageProgram stage;
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};
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perf = {stage, conf, ...}: with conf; w.perf {
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program = stageProgram stage;
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perfArgs = "sched record -a";
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};
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nixsetup = {stage, conf, ...}: with conf; w.nixsetup {
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program = stageProgram stage;
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nixsetup = "${nixPrefix}/bin/nix-setup";
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};
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extrae = {stage, conf, ...}:
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let
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# We set the mpi implementation to the one specified in the conf, so all
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# packages in bsc will use that one.
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customPkgs = genPkgs (self: super: {
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bsc = super.bsc // { mpi = conf.mpi; };
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});
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extrae = customPkgs.bsc.extrae;
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in
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w.extrae {
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program = stageProgram stage;
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extrae = extrae;
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traceLib = "nanosmpi"; # mpi -> libtracempi.so
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configFile = ./extrae.xml;
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};
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bscOverlay = import ../../../overlay.nix;
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genPkgs = newOverlay: nixpkgs {
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overlays = [
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bscOverlay
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newOverlay
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];
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};
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# Print the environment to ensure we don't get anything nasty
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envRecord = {stage, conf, ...}: w.envRecord {
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program = stageProgram stage;
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};
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broom = {stage, conf, ...}: w.broom {
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program = stageProgram stage;
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};
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# We may be able to use overlays by invoking the fix function directly, but we
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# have to get the definition of the bsc packages and the garlic ones as
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# overlays.
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argv = {stage, conf, ...}: with conf; w.argv {
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program = stageProgram stage;
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exec = {nextStage, conf, ...}: with conf; stages.exec {
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inherit nextStage;
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env = ''
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export OMP_NUM_THREADS=24
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export NANOS6_REPORT_PREFIX="#"
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export I_MPI_THREAD_SPLIT=1
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export ASAN_SYMBOLIZER_PATH=${pkgs.bsc.clangOmpss2Unwrapped}/bin/llvm-symbolizer
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''
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+ optionalString enableExtrae
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''export NANOS6=extrae
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export NANOS6_EXTRAE_AS_THREADS=0
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export ASAN_SYMBOLIZER_PATH=${bsc.clangOmpss2Unwrapped}/bin/llvm-symbolizer
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'';
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};
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saiphFn = {stage, conf, ...}: with conf;
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let
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# We set the mpi implementation to the one specified in the conf, so all
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# packages in bsc will use that one.
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customPkgs = genPkgs (self: super: {
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bsc = super.bsc // { mpi = conf.mpi; };
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});
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in
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customPkgs.bsc.garlic.saiph.override {
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inherit devMode numComm mpi gitBranch;
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};
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program = {nextStage, conf, ...}: with conf;
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let
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customPkgs = stdexp.replaceMpi conf.mpi;
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in
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customPkgs.apps.saiph.override {
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inherit devMode numComm mpi gitBranch;
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};
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stages = with common; []
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# Cleans ALL environment variables
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++ [ broom ]
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# Use sbatch to request resources first
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++ optionals enableSbatch [ sbatch nixsetup ]
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# Record the current env vars set by SLURM to verify we don't have something
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# nasty (like sourcing .bashrc). Take a look at #26
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++ [ envRecord ]
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# Repeats the next stages N=30 times
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++ optional enableControl control
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# Executes srun to launch the program in the requested nodes, and
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# immediately after enters the nix environment again, as slurmstepd launches
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# the next stages from outside the namespace.
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++ [ srun nixsetup ]
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# Intrumentation with extrae
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++ optional enableExtrae extrae
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# Optionally profile the next stages with perf
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++ optional enablePerf perf
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# Execute the saiph example app
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++ [ argv saiphFn ];
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# List of actual programs to be executed
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jobs = map (conf: w.stagen { inherit conf stages; }) configs;
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pipeline = stdexp.stdStages ++ [ exec program ];
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in
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# We simply run each program one after another
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w.launch jobs
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stdexp.genExperiment { inherit configs pipeline; }
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