forked from zhoulin/zl_bench
Aharrypotter
4d69320139
zl_bench already had the screening mechanics — ab_rlc_test.sh runs exactly one
config-pinned pair per operator (before records, after replays it) against the
vendor-prefixed RLC switch. I had started a second script for the same job
instead of extending this one; that is removed.
What the existing script could not tell you is whether the pair is worth
following with six rounds, which costs 13-44 minutes per operator against
about 0.8 for the pair. It now writes a verdict per operator to
<root>/screen.tsv, and three of the four are not "the switch does nothing":
IR_CHANGED the two sides' ttgir differ -> measure it
NO_IR_DIFF byte-identical, configs pinned -> skip it
NO_KERNEL rows but no .ttgir -> never reached Triton here
NO_ROWS no measurements -> usually the dtype
The criterion is the ttgir fingerprint, not the convert_layout count: equal
counts do not mean equal generated code, and what the A/B measures is whether
the generated code changed. Counts are still recorded — they say what kind of
change it was. The fingerprint comes from _ir_fingerprint.sh, shared with
ab_repeat.sh's round-1 check so the two cannot drift apart.
OPS entries take an optional per-operator dtype and default to the operator's
own set. Forcing one dtype across a list is how fft got written off as
unrunnable on MUSA: it only accepts complex64.
Output moves under runs/ab_rlc_<ts>/<op>_{before,after} with OUT_DIR set
explicitly, rather than recovering the directory with `ls -dt runs/<op>_*`.
That lookup is correct while one process runs operators in series, which is
the only way it has been used; it stops being correct the moment several cards
share runs/.
132 lines
6.0 KiB
Bash
132 lines
6.0 KiB
Bash
#!/bin/bash
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# A/B 对比：FlagTree RemoveLayoutConversions 增强关 vs 开，逐算子两轮。
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#
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# 口径：每个算子先跑关（record autotune config），再用 REPLAY_FROM 回放同一套
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# config 跑开，两侧只差 FLAGTREE_<VENDOR>_RLC_ENHANCE 这一个开关。产物沿用
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# run_pytest.sh 的目录结构，所以每个算子恰好留下两份 run.log：
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#
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# runs/<op>_<时间戳>/run.log 关（before）
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# runs/<op>_<时间戳>/run.log 开（after）
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#
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# 跑完用 batch_summary.py --ab <before> <after> 得到该算子的 speedup 区间。
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#
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# 这一轮同时充当 ab_repeat.sh 的筛选前置：一对的代价约 0.8 分钟，六轮 A/B 是
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# 13~44 分钟（S5000 实测），差 20~50 倍。所以先用它过一遍，只把 IR_CHANGED 的
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# 算子送进 ab_repeat.sh。判定写在 <root>/screen.tsv，四种之一：
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#
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# IR_CHANGED 两侧 ttgir 不同 -> 排六轮
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# NO_IR_DIFF 逐字节相同（config 已锁死）-> 跳过，跑六轮只会测到噪声
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# NO_KERNEL 跑出行但没编出 .ttgir -> 该算子在本后端没走 Triton，
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# 编译器开关无从谈起。不是"开关无作用"
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# NO_ROWS 没有测量行 -> 先修可运行性，多半是 dtype
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#
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# 判据是 ttgir 指纹而不是 convert_layout 计数：cvt 数相同不等于生成代码相同。
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# cvt 数照样记，它解释的是变化的性质。
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#
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# 用法：
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# OPS="softmax gelu_backward" bash ab_rlc_test.sh
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# OPS="sort:perf_sort topk" bash ab_rlc_test.sh # OP:OP_FILE
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# OPS="perf_fft:fft:complex64 topk:topk" bash ab_rlc_test.sh # 再加 DTYPES
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#
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# DTYPES 留空表示用该算子自己的全套。**不要全局写死一个 dtype**：fft 只吃
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# complex64，被一刀切的 DTYPES=float16 判死过一次——那是 harness 的问题，
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# 却被记成了算子的问题。
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#
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# 注意：RLC 开关名带厂商前缀，用 VENDOR 指定（默认 MUSA）。开关名拼错时两侧跑
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# 同一份代码，此时判定会是 NO_IR_DIFF——先查拼写，再下"开关无作用"的结论。
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set -uo pipefail
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cd "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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source "./_ir_fingerprint.sh"
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VENDOR="${VENDOR:-MUSA}"
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ENHANCE_VAR="FLAGTREE_${VENDOR}_RLC_ENHANCE"
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# 空格分隔的算子表。元素为 OP 或 OP:OP_FILE（省略时 OP_FILE=OP）。
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OPS="${OPS:-softmax}"
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if [[ -t 1 && -z "${NO_COLOR:-}" ]]; then
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export FLAGGEMS_PERF_COLOR=always
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fi
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# 显式 OUT_DIR，不再用 `ls -dt runs/<op>_*` 猜"最新那个就是我刚跑的"。串行下
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# 那个假设成立，多卡并行共用 runs/ 就不成立了。
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ROOT="runs/ab_rlc_$(date +%Y%m%d-%H%M%S)"
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mkdir -p "$ROOT"
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LOG="$ROOT/summary.log"
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TSV="$ROOT/screen.tsv"
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printf 'op op_file dtypes rows_before rows_after kernels_before kernels_after cvt_before cvt_after verdict
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' > "$TSV"
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count_cvt() { find "$1/ttgir" -name '*.ttgir' -type f -exec cat {} + 2>/dev/null | grep -c convert_layout || true; }
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count_kernels() { find "$1/ttgir" -name '*.ttgir' -type f 2>/dev/null | wc -l; }
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count_rows() { grep -c '^SUCCESS' "$1/run.log" 2>/dev/null || true; }
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{
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echo ">>> vendor=$VENDOR switch=$ENHANCE_VAR ops=$OPS"
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for entry in $OPS; do
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op="${entry%%:*}"; rest="${entry#*:}"
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if [[ "$rest" == "$entry" ]]; then op_file="$op"; dtypes=""
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else
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op_file="${rest%%:*}"; d="${rest#*:}"
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[[ "$d" == "$rest" ]] && dtypes="" || dtypes="$d"
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fi
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BEFORE="$ROOT/${op}_before"; AFTER="$ROOT/${op}_after"
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echo "########## $op | $ENHANCE_VAR=0 before (record) ##########"
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OP="$op" OP_FILE="$op_file" OUT_DIR="$BEFORE" DTYPES="$dtypes" \
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env "$ENHANCE_VAR=0" bash run_pytest.sh
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rc_before=$?
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echo "########## $op | $ENHANCE_VAR=1 after (replay $BEFORE) ##########"
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OP="$op" OP_FILE="$op_file" OUT_DIR="$AFTER" DTYPES="$dtypes" \
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REPLAY_FROM="$BEFORE" env "$ENHANCE_VAR=1" bash run_pytest.sh
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rc_after=$?
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rb=$(count_rows "$BEFORE"); ra=$(count_rows "$AFTER")
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kb=$(count_kernels "$BEFORE"); ka=$(count_kernels "$AFTER")
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cb=$(count_cvt "$BEFORE"); ca=$(count_cvt "$AFTER")
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fb=$(ir_fingerprint "$BEFORE") || fb=""
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fa=$(ir_fingerprint "$AFTER") || fa=""
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if (( rc_before != 0 || rc_after != 0 )) || [[ "${rb:-0}" == 0 || "${ra:-0}" == 0 ]]; then
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verdict=NO_ROWS
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note="跑不出测量行（rc=$rc_before/$rc_after）。看 run.log——多半是 dtype 不被该算子接受，或它在本后端拿不到 config"
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elif [[ -z "$fb" || -z "$fa" ]]; then
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verdict=NO_KERNEL
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note="没编出 .ttgir：该算子在本后端没走 Triton，编译器开关对它无从谈起。这不是'开关无作用'"
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elif [[ "$fb" == "$fa" ]]; then
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verdict=NO_IR_DIFF
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note="两侧 ttgir 逐字节相同（config 已锁死）：开关没改变生成代码。先查开关名拼写，再下结论"
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else
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verdict=IR_CHANGED
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note="生成代码有变（cvt ${cb}→${ca}，指纹 ${fb:0:8}/${fa:0:8}）：值得排六轮 A/B"
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fi
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printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\n' \
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"$op" "$op_file" "${dtypes:-<all>}" "${rb:-0}" "${ra:-0}" \
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"$kb" "$ka" "${cb:-0}" "${ca:-0}" "$verdict" >> "$TSV"
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echo ">>> $op: $verdict — $note"
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if [[ "$verdict" == NO_ROWS ]]; then
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echo "!!! $op 没有可对比的测量，不出 speedup 区间"
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continue
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fi
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echo "########## $op | summary ##########"
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python batch_summary.py --ab "$BEFORE/run.log" "$AFTER/run.log" --label "$op" \
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|| echo "!!! summary failed: $op"
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done
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echo "########## 筛选汇总 ##########"
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awk -F'\t' 'NR>1{printf " %-12s %-22s cvt %s->%s kernels %s/%s rows %s/%s\n", \
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$10,$1,$8,$9,$6,$7,$4,$5}' "$TSV" | sort
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echo ">>> 只把 IR_CHANGED 的算子送进 ab_repeat.sh。"
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echo "########## ALL DONE ##########"
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} 2>&1 | tee "$LOG"
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# 去掉 ANSI 转义以便 grep/diff（终端输出保留颜色）
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sed -i -E $'s/\x1b\\[[0-9;]*[A-Za-z]//g' "$LOG"
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echo ">>> 总 log: $(pwd)/$LOG"
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echo ">>> 筛选表: $(pwd)/$TSV"
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echo ">>> 每算子两份 run.log 在 $ROOT/<op>_{before,after}/ 下"
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