cosmos-sdk/scripts/multisim.sh

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#!/bin/bash
seeds=(1 2 4 7 9 20 32 123 4728 37827 981928 87821 891823782 989182 89182391)
echo "Running multi-seed simulation with seeds: ${seeds[@]}"
echo "Edit scripts/multisim.sh to add new seeds. Keeping parameters in the file makes failures easy to reproduce."
echo "This script will kill all sub-simulations on SIGINT/SIGTERM/EXIT (i.e. Ctrl-C)."
trap 'kill $(jobs -pr)' SIGINT SIGTERM EXIT
tmpdir=$(mktemp -d)
echo "Using temporary log directory: $tmpdir"
sim() {
seed=$1
echo "Running full Gaia simulation with seed $seed. This may take awhile!"
file="$tmpdir/gaia-simulation-seed-$seed-date-$(date -Iseconds -u).stdout"
echo "Writing stdout to $file..."
go test ./cmd/gaia/app -run TestFullGaiaSimulation -SimulationEnabled=true -SimulationNumBlocks=1000 \
-SimulationVerbose=true -SimulationCommit=true -SimulationSeed=$seed -v -timeout 24h > $file
}
i=0
pids=()
for seed in ${seeds[@]}; do
sim $seed &
pids[${i}]=$!
i=$(($i+1))
sleep 0.1 # start in order, nicer logs
done
echo "Simulation processes spawned, waiting for completion..."
code=0
i=0
for pid in ${pids[*]}; do
wait $pid
last=$?
if [ $last -ne 0 ]; then
seed=${seeds[${i}]}
echo "Simulation with seed $seed failed!"
code=1
fi
i=$(($i+1))
done
exit $code