Build the DoE region reader + automated R/LaTeX report pipeline
Closes the "still open" reader-tool note from §XXXV.10: scripts/ extract_doe_region.py spools DOE-PERSIST-TRIAL's on-disk binary ring off disk/artemis.img into a CSV -- direct file read by default, or via a real loop device (--loop, losetup) per the literal request. Independent Python reimplementation of doe_region.c's own ring-walk, verified against a live 3-record write/read round trip. analyse_multiuser_doe.R (house style, ggplot2/svglite) and multiuser_doe_report.tex (same preamble convention as bare_metal_doe_report.tex) auto-discover whatever data exists and degrade gracefully to a placeholder when a campaign has 0 trials so far -- the whole point being this can be rebuilt at any point during a multi-day campaign, including mid-run. build_multiuser_doe_report.sh chains extraction -> R -> svg_to_pdf.py -> pdflatex into one command. Found and fixed a real bug while verifying: the R script's SCRIPT_DIR detection silently wrote charts/tables/report output to the repo root instead of the analysis directory when invoked from a different cwd -- switched to the robust commandArgs() "--file=" idiom. Verified live both branches (0 trials and a real 3-record write), reverted synthetic test data and incidental svg_to_pdf.py churn on ~85 unrelated committed figures before committing. FABRIC-3.md §XXXV.11 has the full account. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BWpNjdwPtFLuVLaAq44L9K
This commit is contained in:
Robert Allan James
co-authored by
Claude Sonnet 5
Claude Sonnet 5
parent
aaf349946f
commit
c535252907
Executable
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#!/usr/bin/env bash
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# build_multiuser_doe_report.sh — full pipeline: disk -> CSV -> R/SVG -> PDF
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#
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# Chains: extract_doe_region.py (spool DOE-PERSIST-TRIAL records off
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# disk/artemis.img) -> analyse_multiuser_doe.R (tables + SVG charts +
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# auto-generated summary fragment) -> svg_to_pdf.py (SVG -> PDF for
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# \includegraphics) -> pdflatex (twice, for cross-references) ->
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# multiuser_doe_report.pdf.
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#
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# Safe to re-run at any point, including while a multi-day campaign is
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# still executing on a separate QEMU instance: every step is read-only
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# with respect to disk/artemis.img, and analyse_multiuser_doe.R degrades
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# to a "no data yet" placeholder rather than failing when the DoE region
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# has 0 trials so far.
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#
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# Usage:
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# scripts/build_multiuser_doe_report.sh [--loop] [--csv PATH]
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#
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# --loop Attach disk/artemis.img via losetup instead of reading
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# the file directly (needs sudo). See extract_doe_region.py.
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# --csv PATH Skip disk extraction entirely and analyse an existing
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# CSV instead (e.g. to smoke-test this pipeline against
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# an old per-tick run CSV, or a CSV saved from a previous
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# extraction).
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set -euo pipefail
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REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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cd "$REPO_ROOT"
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ANALYSIS_DIR="experiments/bare_metal/analysis"
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RUNS_DIR="experiments/bare_metal/runs"
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REPORT_DIR="$ANALYSIS_DIR/report"
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CSV_OUT="$RUNS_DIR/multiuser-doe-trials.csv"
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USE_LOOP=0
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CSV_OVERRIDE=""
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while [ $# -gt 0 ]; do
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case "$1" in
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--loop) USE_LOOP=1; shift ;;
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--csv) CSV_OVERRIDE="$2"; shift 2 ;;
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*) echo "Unknown argument: $1" >&2; exit 1 ;;
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esac
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done
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echo "=== [1/4] Extracting trial records ==="
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if [ -n "$CSV_OVERRIDE" ]; then
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echo " Using existing CSV: $CSV_OVERRIDE (skipping disk extraction)"
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CSV_OUT="$CSV_OVERRIDE"
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elif [ -f disk/artemis.img ]; then
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mkdir -p "$RUNS_DIR"
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if [ "$USE_LOOP" -eq 1 ]; then
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python3 scripts/extract_doe_region.py --img disk/artemis.img --loop -o "$CSV_OUT"
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else
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python3 scripts/extract_doe_region.py --img disk/artemis.img -o "$CSV_OUT"
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fi
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else
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echo " disk/artemis.img not found -- writing an empty CSV so the report" >&2
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echo " still builds with a 'no data yet' placeholder." >&2
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mkdir -p "$RUNS_DIR"
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echo "isa,run_id,cfg,rep,nw,mode,fail_count,fleet_k_q48,fleet_conserved,switch_count_cumulative" > "$CSV_OUT"
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fi
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echo ""
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echo "=== [2/4] Running R analysis (tables + charts + summary fragment) ==="
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Rscript "$ANALYSIS_DIR/analyse_multiuser_doe.R" "$CSV_OUT"
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echo ""
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echo "=== [3/4] Converting SVG charts to PDF ==="
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python3 "$ANALYSIS_DIR/svg_to_pdf.py"
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echo ""
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echo "=== [4/4] Building PDF report ==="
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mkdir -p "$REPORT_DIR/sections"
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if [ ! -f "$REPORT_DIR/sections/multiuser_summary_autogen.tex" ]; then
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echo "No trial data has been persisted to the DoE region yet." \
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> "$REPORT_DIR/sections/multiuser_summary_autogen.tex"
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fi
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cd "$REPORT_DIR"
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pdflatex -interaction=nonstopmode -halt-on-error multiuser_doe_report.tex >/tmp/multiuser_doe_report_latex1.log 2>&1 || {
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echo "pdflatex (pass 1) failed -- see /tmp/multiuser_doe_report_latex1.log" >&2
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tail -40 /tmp/multiuser_doe_report_latex1.log >&2
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exit 1
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}
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pdflatex -interaction=nonstopmode -halt-on-error multiuser_doe_report.tex >/tmp/multiuser_doe_report_latex2.log 2>&1 || {
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echo "pdflatex (pass 2) failed -- see /tmp/multiuser_doe_report_latex2.log" >&2
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tail -40 /tmp/multiuser_doe_report_latex2.log >&2
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exit 1
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}
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cd "$REPO_ROOT"
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echo ""
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echo "=== Done ==="
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echo " PDF: $REPORT_DIR/multiuser_doe_report.pdf"
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Executable
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#!/usr/bin/env python3
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"""
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extract_doe_region.py -- spool the DOE-PERSIST-TRIAL binary ring off
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disk/artemis.img into a CSV, for the multiuser/multitasking DoE campaign
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report (FABRIC-3.md §XXXV.10).
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Reads the SAME devblock_from_top-addressed ring doe_region.c writes
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(include/starkernel/doe_region.h has the authoritative layout: control
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header at devblock_from_top=98, slot devblocks growable from 99, 64-byte
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doe_trial_slot_t records, 64 slots/devblock). Two access modes:
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--img PATH Read the image file directly (default). No privilege
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needed, works on a plain regular file. This is what
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"reading the drive" reduces to when the image is
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just a file, which is the normal QEMU-dev case.
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--loop PATH Attach PATH via losetup first (needs sudo), read the
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resulting /dev/loopN node, then detach it again on
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exit -- the literal "mount the virtual drive on a
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loop device" step for when this runs against a real
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block device or a copy pulled off real hardware. The
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ring is raw binary at a fixed byte offset, not a
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filesystem -- there is nothing to `mount` in the
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POSIX-filesystem sense, so this attaches the loop
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device and reads it exactly like a regular file.
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Either mode is read-only and never modifies the image. Safe to run
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against a live campaign's artemis.img (the ring's control header CRC
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means a torn read mid-write is simply rejected as "ring not yet
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initialized" by the same discipline doe_region.c itself uses -- see
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doe_region_ctrl_read()); worst case is missing the very latest record
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until the next run of this script.
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"""
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import argparse
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import csv
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import struct
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import subprocess
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import sys
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from contextlib import contextmanager
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from pathlib import Path
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DEVBLOCK_SIZE = 4096
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# Mirrors include/starkernel/doe_region.h and include/starkernel/log_region.h
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ARTEMIS_SIG_DEVBLOCK_FROM_TOP = 64
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LOG_REGION_DEVBLOCK_FROM_TOP_BASE = ARTEMIS_SIG_DEVBLOCK_FROM_TOP + 1 # 65
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LOG_REGION_MAX_DEVBLOCKS = 32
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DOE_REGION_DEVBLOCK_FROM_TOP_BASE = (
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LOG_REGION_DEVBLOCK_FROM_TOP_BASE + 1 + LOG_REGION_MAX_DEVBLOCKS
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) # 98
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DOE_SLOT_SIZE = 64
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DOE_SLOTS_PER_DEVBLOCK = DEVBLOCK_SIZE // DOE_SLOT_SIZE # 64
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DOE_REGION_MAGIC = 0x44454F44 # 'DOED'
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DOE_REGION_VERSION_0 = 0
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# doe_region_ctrl_t: magic(u64) devblocks(u32) head_slot(u32) tail_slot(u32)
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# record_count(u32) hdr_crc(u64), little-endian, rest is padding to 4096.
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CTRL_FMT = "<QIIIIQ"
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CTRL_SIZE = struct.calcsize(CTRL_FMT)
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# doe_trial_slot_t: fleet_k_q48(u64) switch_count_cumulative(u64)
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# run_id(u32) cfg(u32) rep(u32) nw(u32) mode(u32) fail_count(u32)
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# fleet_conserved(u32) isa(8s), rest is padding to 64.
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SLOT_FMT = "<QQIIIIIII8s"
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SLOT_SIZE = struct.calcsize(SLOT_FMT)
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assert SLOT_SIZE <= DOE_SLOT_SIZE
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def dft_to_offset(devblock_from_top: int, total_devblocks: int) -> int:
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idx = total_devblocks - 1 - devblock_from_top
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if idx < 0:
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raise ValueError(
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f"devblock_from_top={devblock_from_top} exceeds total_devblocks={total_devblocks}"
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)
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return idx * DEVBLOCK_SIZE
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@contextmanager
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def loop_attach(img_path: Path):
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"""Attach img_path via losetup (read-only), yield the /dev/loopN path,
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detach on exit. Requires sudo -- the literal 'mount on a loop device'
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step; nothing here is a filesystem mount."""
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result = subprocess.run(
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["sudo", "losetup", "--find", "--show", "--read-only", str(img_path)],
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capture_output=True, text=True, check=True,
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)
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loop_dev = result.stdout.strip()
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print(f" attached {img_path} -> {loop_dev}", file=sys.stderr)
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try:
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yield loop_dev
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finally:
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subprocess.run(["sudo", "losetup", "--detach", loop_dev], check=False)
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print(f" detached {loop_dev}", file=sys.stderr)
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def read_ring(dev_path: str):
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"""Returns a list of dicts, one per live trial record, in ring order
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(oldest first). Empty list if the ring has never been written."""
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size = Path(dev_path).stat().st_size if not dev_path.startswith("/dev/") else None
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if size is None:
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with open(dev_path, "rb") as f:
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f.seek(0, 2)
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size = f.tell()
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total_devblocks = size // DEVBLOCK_SIZE
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if total_devblocks <= DOE_REGION_DEVBLOCK_FROM_TOP_BASE:
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raise ValueError(
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f"image too small ({size} bytes, {total_devblocks} devblocks) "
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f"for the DOE region fence (needs > {DOE_REGION_DEVBLOCK_FROM_TOP_BASE})"
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)
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ctrl_off = dft_to_offset(DOE_REGION_DEVBLOCK_FROM_TOP_BASE, total_devblocks)
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with open(dev_path, "rb") as f:
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f.seek(ctrl_off)
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ctrl_raw = f.read(DEVBLOCK_SIZE)
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magic, devblocks, head_slot, tail_slot, record_count, hdr_crc = struct.unpack_from(
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CTRL_FMT, ctrl_raw, 0
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)
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magic_lo = magic & 0xFFFFFFFF
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version = (magic >> 32) & 0xFF
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if magic_lo != DOE_REGION_MAGIC or version != DOE_REGION_VERSION_0:
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print(" DOE region not yet initialized (no trials persisted yet)", file=sys.stderr)
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return []
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total_slots = devblocks * DOE_SLOTS_PER_DEVBLOCK
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records = []
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with open(dev_path, "rb") as f:
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idx = head_slot
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for _ in range(record_count):
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slot_devblock_dft = DOE_REGION_DEVBLOCK_FROM_TOP_BASE + 1 + (idx // DOE_SLOTS_PER_DEVBLOCK)
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slot_off_in_devblock = (idx % DOE_SLOTS_PER_DEVBLOCK) * DOE_SLOT_SIZE
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blk_off = dft_to_offset(slot_devblock_dft, total_devblocks)
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f.seek(blk_off + slot_off_in_devblock)
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raw = f.read(SLOT_SIZE)
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(fleet_k_q48, switch_count, run_id, cfg, rep, nw, mode,
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fail_count, fleet_conserved, isa_raw) = struct.unpack(SLOT_FMT, raw)
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isa = isa_raw.split(b"\x00", 1)[0].decode("ascii", errors="replace")
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records.append({
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"isa": isa,
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"run_id": run_id,
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"cfg": cfg,
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"rep": rep,
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"nw": nw,
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"mode": mode,
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"fail_count": fail_count,
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"fleet_k_q48": fleet_k_q48,
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"fleet_conserved": fleet_conserved,
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"switch_count_cumulative": switch_count,
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})
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idx = (idx + 1) % total_slots
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print(f" ring: devblocks={devblocks} head={head_slot} tail={tail_slot} "
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f"record_count={record_count} -> {len(records)} records read", file=sys.stderr)
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return records
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def main():
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ap = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
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ap.add_argument("--img", default="disk/artemis.img", help="Path to the disk image (default: disk/artemis.img)")
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ap.add_argument("--loop", action="store_true", help="Attach --img via losetup first (needs sudo)")
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ap.add_argument("-o", "--out", default=None, help="Output CSV path (default: stdout)")
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args = ap.parse_args()
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img_path = Path(args.img)
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if not img_path.exists():
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print(f"extract_doe_region: image not found: {img_path}", file=sys.stderr)
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sys.exit(1)
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if args.loop:
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with loop_attach(img_path) as loop_dev:
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records = read_ring(loop_dev)
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else:
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records = read_ring(str(img_path))
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fieldnames = ["isa", "run_id", "cfg", "rep", "nw", "mode", "fail_count",
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"fleet_k_q48", "fleet_conserved", "switch_count_cumulative"]
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out_f = open(args.out, "w", newline="") if args.out else sys.stdout
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try:
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writer = csv.DictWriter(out_f, fieldnames=fieldnames)
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writer.writeheader()
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for rec in records:
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writer.writerow(rec)
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finally:
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if args.out:
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out_f.close()
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print(f" wrote {len(records)} rows -> {args.out}", file=sys.stderr)
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if __name__ == "__main__":
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main()
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Reference in New Issue
Block a user