Research 124's suite: seven kinds of work in one event each (roots, knapsack, sort, join, words, matmul, BFS), each against the C one would write, in one process with the same inputs and answers; PURE_AHEAD=0 to measure the code without reading ahead

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diff --git a/research/experiments/040-against-c/runs.sh b/research/experiments/040-against-c/runs.sh
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+#!/bin/sh
+# The runs of research 124's suite (docs/design/023), from the repository's
+# root, each under research/guard.py on a quiet Pi:
+#   runs.sh build NAME COMMIT    suite-run on COMMIT's core, and the
+#                                workloads' modules, in ~/.cache/pure-040/NAME
+#   runs.sh suite NAME ROUNDS    every workload on NAME: as it runs (JIT where
+#                                Linux AArch64), the executor alone
+#                                (PURE_JIT=0), and BFS without reading ahead
+#                                (PURE_AHEAD=0)
+set -e
+here=research/experiments/040-against-c
+builds=$HOME/.cache/pure-040
+day=$(date +%F)
+quiet() { until awk '{ exit !($1 < 1.5) }' /proc/loadavg; do sleep 10; done; }
+case "$1" in
+build)
+    rm -rf "$builds/src-$2"
+    git worktree add -f -q --detach "$builds/src-$2" "$3"
+    make -s -C "$builds/src-$2" build/libpure.a
+    mkdir -p "$builds/$2"
+    cc -O2 -g -std=c17 -I"$builds/src-$2/core" $here/suite-run.c "$builds/src-$2/build/libpure.a" -lm -o "$builds/$2/suite-run"
+    git worktree remove --force "$builds/src-$2"
+    for work in roots knapsack sort join words matmul; do ../aup/build/aup build $here/$work.aup -o "$builds/$2/$work.pmod"; done
+    ../aup/build/aup build research/experiments/033-computing/graph.aup -o "$builds/$2/graph.pmod" ;;
+suite)
+    quiet
+    echo "$2 $(uptime)" >> "$here/$day-load.txt"
+    python3 research/guard.py --most 3072 -- "$builds/$2/suite-run" "$builds/$2" "$3" \
+        | sed "s/^{/{\"version\":\"$2\",\"jit\":1,\"ahead\":1,/" >> "$here/$day-suite.jsonl"
+    quiet
+    PURE_JIT=0 python3 research/guard.py --most 3072 -- "$builds/$2/suite-run" "$builds/$2" "$3" \
+        | sed "s/^{/{\"version\":\"$2\",\"jit\":0,\"ahead\":1,/" >> "$here/$day-suite.jsonl"
+    quiet
+    PURE_AHEAD=0 python3 research/guard.py --most 3072 -- "$builds/$2/suite-run" "$builds/$2" "$3" bfs bfs_ahead \
+        | sed "s/^{/{\"version\":\"$2\",\"jit\":1,\"ahead\":0,/" >> "$here/$day-suite.jsonl" ;;
+*) echo "runs.sh build NAME COMMIT | suite NAME ROUNDS" >&2
+    exit 2 ;;
+esac