145 lines
3.9 KiB
Nix
145 lines
3.9 KiB
Nix
{
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stdenv
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, config
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, stages
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, targetMachine
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, garlicTools
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, bsc
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, writeTextFile
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, runCommandLocal
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, python
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, pp
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}:
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with stdenv.lib;
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with garlicTools;
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let
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machineConf = targetMachine.config;
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in
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rec {
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/* Takes a list of units and builds an experiment, after executing the
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trebuchet, runexp and isolate stages. Returns the trebuchet stage. */
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buildTrebuchet = units:
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let
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trebuchet = stages.trebuchet {
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inherit (machineConf) nixPrefix sshHost;
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nextStage = stages.runexp {
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inherit (machineConf) nixPrefix;
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nextStage = stages.isolate {
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inherit (machineConf) nixPrefix;
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nextStage = stages.experiment {
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inherit units;
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};
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};
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};
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};
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in trebuchet // rec {
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result = pp.store {
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trebuchet=trebuchet;
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experiment=trebuchet.experiment;
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};
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timetable = pp.timetable result;
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};
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/* Given an attrset of lists `varConf` and a function `genConf` that accepts a
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attrset, computes the cartesian product of all combinations of `varConf` calls
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genConf to produce the final list of configurations. */
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buildConfigs = {varConf, genConf}:
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map (c: genConf c) (genConfigs varConf);
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stdStages = {
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sbatch = {nextStage, conf, ...}: with conf; stages.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 (config ? garlic.sbatch.reservation) {
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inherit (config.garlic.sbatch) reservation;
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} //
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# However, if the experiment contains a reservation, that takes priority
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# over the one set in the ~/.config/nixpkgs/config.nix file. Add other
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# options if they are defined as well.
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optionalInherit [ "reservation" "time" "qos" ] conf //
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# Finally, add all the other required parameters
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{
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inherit nextStage nixPrefix;
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# These sbatch options are mandatory
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inherit cpusPerTask ntasksPerNode nodes jobName;
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exclusive = true;
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}
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);
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control = {nextStage, conf, ...}: stages.control {
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inherit (conf) loops;
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inherit nextStage;
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};
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srun = {nextStage, conf, ...}: (
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assert (assertMsg (!(conf ? cpuBind))
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"cpuBind is no longer available in the standard srun stage");
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stages.srun {
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inherit (conf) nixPrefix;
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inherit nextStage;
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# Binding is set to cores always
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cpuBind = "cores,verbose";
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}
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);
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isolate = {nextStage, conf, ...}: stages.isolate (
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(
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if (conf ? extraMounts) then { inherit (conf) extraMounts; }
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else {}
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) //
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{
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clusterName = machineConf.name;
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inherit (conf) nixPrefix;
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inherit nextStage;
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}
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);
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};
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stdPipelineOverride = {overrides ? {}}:
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let
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stages = stdStages // overrides;
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in
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with stages; [ sbatch isolate control srun isolate ];
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stdPipeline = stdPipelineOverride {};
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replaceMpi = customMpi: bsc.extend (self: super: {
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mpi = customMpi;
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});
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# Generate the experimental units
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genUnits = {configs, pipeline}: map (c: stages.unit {
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conf = c;
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stages = pipeline;
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}) configs;
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# Generate the complete experiment
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genExperiment = {configs, pipeline}:
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let
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units = genUnits { inherit configs pipeline; };
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in
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buildTrebuchet units;
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# Runs a python script and the standard output is directly imported as
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# nix code
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printPython = code:
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let
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p = writeTextFile {
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name = "python-script";
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text = ''
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from math import *
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${code}
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'';
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};
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in
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import (runCommandLocal "a" { buildInputs = [ python ]; } ''
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python ${p} > $out'');
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}
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