Michael Chus
813e2f86a9
- Add RampStep/RampTotal/RampRunID to NvidiaBenchmarkOptions, taskParams, and NvidiaBenchmarkResult so ramp-up steps can be correlated across result.json files - Add ScalabilityScore field to NvidiaBenchmarkResult (placeholder; computed externally by comparing ramp-up step results sharing the same ramp_run_id) - Propagate ramp fields through api.go (generates shared ramp_run_id at spawn time), tasks.go handler, and benchmark.go result population - Apply ServerPower penalty to CompositeScore when IPMI reporting_ratio < 0.75: factor = ratio/0.75, applied per-GPU with a note explaining the reduction - Add finding when server power delta exceeds GPU-reported sum by >25% (non-GPU draw) - Report header now shows ramp step N/M and run ID instead of "parallel" when in ramp mode; shows scalability_score when non-zero Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
353 lines
13 KiB
Go
353 lines
13 KiB
Go
package platform
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import (
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"time"
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)
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func renderBenchmarkReport(result NvidiaBenchmarkResult) string {
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return renderBenchmarkReportWithCharts(result, nil)
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}
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type benchmarkReportChart struct {
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Title string
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Content string
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}
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var ansiEscapePattern = regexp.MustCompile(`\x1b\[[0-9;]*m`)
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func renderBenchmarkReportWithCharts(result NvidiaBenchmarkResult, charts []benchmarkReportChart) string {
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var b strings.Builder
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// ── Header ────────────────────────────────────────────────────────────────
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b.WriteString("# Bee NVIDIA Benchmark Report\n\n")
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// System identity block
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if result.ServerModel != "" {
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fmt.Fprintf(&b, "**Server:** %s \n", result.ServerModel)
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}
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if result.Hostname != "" {
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fmt.Fprintf(&b, "**Host:** %s \n", result.Hostname)
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}
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// GPU models summary
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if len(result.GPUs) > 0 {
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modelCount := make(map[string]int)
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var modelOrder []string
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for _, g := range result.GPUs {
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m := strings.TrimSpace(g.Name)
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if m == "" {
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m = "Unknown GPU"
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}
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if modelCount[m] == 0 {
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modelOrder = append(modelOrder, m)
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}
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modelCount[m]++
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}
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var parts []string
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for _, m := range modelOrder {
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if modelCount[m] == 1 {
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parts = append(parts, m)
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} else {
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parts = append(parts, fmt.Sprintf("%d× %s", modelCount[m], m))
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}
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}
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fmt.Fprintf(&b, "**GPU(s):** %s \n", strings.Join(parts, ", "))
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}
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fmt.Fprintf(&b, "**Profile:** %s \n", result.BenchmarkProfile)
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fmt.Fprintf(&b, "**App version:** %s \n", result.BenchmarkVersion)
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fmt.Fprintf(&b, "**Generated:** %s \n", result.GeneratedAt.Format("2006-01-02 15:04:05 UTC"))
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if result.RampStep > 0 && result.RampTotal > 0 {
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fmt.Fprintf(&b, "**Ramp-up step:** %d of %d \n", result.RampStep, result.RampTotal)
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if result.RampRunID != "" {
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fmt.Fprintf(&b, "**Ramp-up run ID:** %s \n", result.RampRunID)
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}
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} else if result.ParallelGPUs {
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fmt.Fprintf(&b, "**Mode:** parallel (all GPUs simultaneously) \n")
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}
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if result.ScalabilityScore > 0 {
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fmt.Fprintf(&b, "**Scalability score:** %.1f%% \n", result.ScalabilityScore)
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}
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fmt.Fprintf(&b, "**Overall status:** %s \n", result.OverallStatus)
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b.WriteString("\n")
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// ── Executive Summary ─────────────────────────────────────────────────────
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if len(result.Findings) > 0 {
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b.WriteString("## Executive Summary\n\n")
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for _, finding := range result.Findings {
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fmt.Fprintf(&b, "- %s\n", finding)
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}
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b.WriteString("\n")
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}
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if len(result.Warnings) > 0 {
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b.WriteString("## Warnings\n\n")
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for _, warning := range result.Warnings {
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fmt.Fprintf(&b, "- %s\n", warning)
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}
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b.WriteString("\n")
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}
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// ── Scorecard table ───────────────────────────────────────────────────────
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b.WriteString("## Scorecard\n\n")
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b.WriteString("| GPU | Status | Composite | Compute | TOPS/SM/GHz | Power Sustain | Thermal Sustain | Stability | Interconnect |\n")
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b.WriteString("|-----|--------|-----------|---------|-------------|---------------|-----------------|-----------|-------------|\n")
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for _, gpu := range result.GPUs {
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name := strings.TrimSpace(gpu.Name)
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if name == "" {
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name = "Unknown GPU"
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}
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interconnect := "-"
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if gpu.Scores.InterconnectScore > 0 {
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interconnect = fmt.Sprintf("%.1f", gpu.Scores.InterconnectScore)
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}
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topsPerSM := "-"
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if gpu.Scores.TOPSPerSMPerGHz > 0 {
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topsPerSM = fmt.Sprintf("%.3f", gpu.Scores.TOPSPerSMPerGHz)
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}
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fmt.Fprintf(&b, "| GPU %d %s | %s | **%.2f** | %.2f | %s | %.1f | %.1f | %.1f | %s |\n",
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gpu.Index, name,
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gpu.Status,
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gpu.Scores.CompositeScore,
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gpu.Scores.ComputeScore,
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topsPerSM,
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gpu.Scores.PowerSustainScore,
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gpu.Scores.ThermalSustainScore,
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gpu.Scores.StabilityScore,
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interconnect,
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)
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}
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b.WriteString("\n")
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// ── Per GPU detail ────────────────────────────────────────────────────────
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b.WriteString("## Per-GPU Details\n\n")
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for _, gpu := range result.GPUs {
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name := strings.TrimSpace(gpu.Name)
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if name == "" {
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name = "Unknown GPU"
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}
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fmt.Fprintf(&b, "### GPU %d — %s\n\n", gpu.Index, name)
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// Identity
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if gpu.BusID != "" {
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fmt.Fprintf(&b, "- **Bus ID:** %s\n", gpu.BusID)
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}
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if gpu.VBIOS != "" {
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fmt.Fprintf(&b, "- **vBIOS:** %s\n", gpu.VBIOS)
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}
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if gpu.ComputeCapability != "" {
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fmt.Fprintf(&b, "- **Compute capability:** %s\n", gpu.ComputeCapability)
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}
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if gpu.MultiprocessorCount > 0 {
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fmt.Fprintf(&b, "- **SMs:** %d\n", gpu.MultiprocessorCount)
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}
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if gpu.PowerLimitW > 0 {
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fmt.Fprintf(&b, "- **Power limit:** %.0f W (default %.0f W)\n", gpu.PowerLimitW, gpu.DefaultPowerLimitW)
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}
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if gpu.LockedGraphicsClockMHz > 0 {
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fmt.Fprintf(&b, "- **Locked clocks:** GPU %.0f MHz / Mem %.0f MHz\n", gpu.LockedGraphicsClockMHz, gpu.LockedMemoryClockMHz)
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}
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b.WriteString("\n")
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// Steady-state telemetry
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fmt.Fprintf(&b, "**Steady-state telemetry** (%ds):\n\n", int(gpu.Steady.DurationSec))
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b.WriteString("| | Avg | P95 |\n|---|---|---|\n")
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fmt.Fprintf(&b, "| Power | %.1f W | %.1f W |\n", gpu.Steady.AvgPowerW, gpu.Steady.P95PowerW)
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fmt.Fprintf(&b, "| Temperature | %.1f °C | %.1f °C |\n", gpu.Steady.AvgTempC, gpu.Steady.P95TempC)
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fmt.Fprintf(&b, "| GPU clock | %.0f MHz | %.0f MHz |\n", gpu.Steady.AvgGraphicsClockMHz, gpu.Steady.P95GraphicsClockMHz)
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fmt.Fprintf(&b, "| Memory clock | %.0f MHz | %.0f MHz |\n", gpu.Steady.AvgMemoryClockMHz, gpu.Steady.P95MemoryClockMHz)
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fmt.Fprintf(&b, "| GPU utilisation | %.1f %% | — |\n", gpu.Steady.AvgUsagePct)
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b.WriteString("\n")
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// Throttle
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throttle := formatThrottleLine(gpu.Throttle, gpu.Steady.DurationSec)
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if throttle != "none" {
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fmt.Fprintf(&b, "**Throttle:** %s\n\n", throttle)
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}
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// Precision results
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if len(gpu.PrecisionResults) > 0 {
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b.WriteString("**Precision results:**\n\n")
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b.WriteString("| Precision | TOPS | Lanes | Iterations |\n|-----------|------|-------|------------|\n")
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for _, p := range gpu.PrecisionResults {
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if p.Supported {
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fmt.Fprintf(&b, "| %s | %.2f | %d | %d |\n", p.Name, p.TeraOpsPerSec, p.Lanes, p.Iterations)
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} else {
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fmt.Fprintf(&b, "| %s | — (unsupported) | — | — |\n", p.Name)
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}
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}
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b.WriteString("\n")
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}
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// Degradation / Notes
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if len(gpu.DegradationReasons) > 0 {
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fmt.Fprintf(&b, "**Degradation reasons:** %s\n\n", strings.Join(gpu.DegradationReasons, ", "))
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}
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if len(gpu.Notes) > 0 {
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b.WriteString("**Notes:**\n\n")
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for _, note := range gpu.Notes {
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fmt.Fprintf(&b, "- %s\n", note)
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}
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b.WriteString("\n")
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}
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}
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// ── Interconnect ──────────────────────────────────────────────────────────
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if result.Interconnect != nil {
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b.WriteString("## Interconnect (NCCL)\n\n")
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fmt.Fprintf(&b, "**Status:** %s\n\n", result.Interconnect.Status)
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if result.Interconnect.Supported {
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b.WriteString("| Metric | Avg | Max |\n|--------|-----|-----|\n")
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fmt.Fprintf(&b, "| Alg BW | %.1f GB/s | %.1f GB/s |\n", result.Interconnect.AvgAlgBWGBps, result.Interconnect.MaxAlgBWGBps)
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fmt.Fprintf(&b, "| Bus BW | %.1f GB/s | %.1f GB/s |\n", result.Interconnect.AvgBusBWGBps, result.Interconnect.MaxBusBWGBps)
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b.WriteString("\n")
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}
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for _, note := range result.Interconnect.Notes {
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fmt.Fprintf(&b, "- %s\n", note)
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}
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if len(result.Interconnect.Notes) > 0 {
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b.WriteString("\n")
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}
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}
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// ── Server Power (IPMI) ───────────────────────────────────────────────────
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if sp := result.ServerPower; sp != nil {
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b.WriteString("## Server Power (IPMI)\n\n")
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if !sp.Available {
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b.WriteString("IPMI power measurement unavailable.\n\n")
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} else {
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b.WriteString("| | Value |\n|---|---|\n")
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fmt.Fprintf(&b, "| Server idle | %.0f W |\n", sp.IdleW)
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fmt.Fprintf(&b, "| Server under load | %.0f W |\n", sp.LoadedW)
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fmt.Fprintf(&b, "| Server delta (load − idle) | %.0f W |\n", sp.DeltaW)
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fmt.Fprintf(&b, "| GPU-reported sum | %.0f W |\n", sp.GPUReportedSumW)
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if sp.ReportingRatio > 0 {
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fmt.Fprintf(&b, "| Reporting ratio | %.2f (1.0 = accurate, <0.75 = GPU over-reports) |\n", sp.ReportingRatio)
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}
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b.WriteString("\n")
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}
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for _, note := range sp.Notes {
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fmt.Fprintf(&b, "- %s\n", note)
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}
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if len(sp.Notes) > 0 {
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b.WriteString("\n")
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}
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}
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// ── Terminal charts (steady-state only) ───────────────────────────────────
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if len(charts) > 0 {
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b.WriteString("## Steady-State Charts\n\n")
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for _, chart := range charts {
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content := strings.TrimSpace(stripANSIEscapeSequences(chart.Content))
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if content == "" {
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continue
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}
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fmt.Fprintf(&b, "### %s\n\n```\n%s\n```\n\n", chart.Title, content)
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}
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}
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// ── Methodology ───────────────────────────────────────────────────────────
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b.WriteString("## Methodology\n\n")
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fmt.Fprintf(&b, "- Profile `%s` uses standardized baseline → warmup → steady-state → interconnect → cooldown phases.\n", result.BenchmarkProfile)
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b.WriteString("- Single-GPU compute score from bee-gpu-burn cuBLASLt when available.\n")
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b.WriteString("- Thermal and power limitations inferred from NVIDIA clock event reason counters and sustained telemetry.\n")
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b.WriteString("- `result.json` is the canonical machine-readable source for this benchmark run.\n\n")
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// ── Raw files ─────────────────────────────────────────────────────────────
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b.WriteString("## Raw Files\n\n")
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b.WriteString("- `result.json`\n- `report.md`\n- `summary.txt`\n- `verbose.log`\n")
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b.WriteString("- `gpu-*-baseline-metrics.csv/html/term.txt`\n")
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b.WriteString("- `gpu-*-warmup.log`\n")
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b.WriteString("- `gpu-*-steady.log`\n")
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b.WriteString("- `gpu-*-steady-metrics.csv/html/term.txt`\n")
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b.WriteString("- `gpu-*-cooldown-metrics.csv/html/term.txt`\n")
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if result.Interconnect != nil {
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b.WriteString("- `nccl-all-reduce.log`\n")
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}
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return b.String()
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}
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// loadBenchmarkReportCharts loads only steady-state terminal charts (baseline and
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// cooldown charts are not useful for human review).
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func loadBenchmarkReportCharts(runDir string, gpuIndices []int) []benchmarkReportChart {
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var charts []benchmarkReportChart
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for _, idx := range gpuIndices {
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path := filepath.Join(runDir, fmt.Sprintf("gpu-%d-steady-metrics-term.txt", idx))
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raw, err := os.ReadFile(path)
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if err != nil || len(raw) == 0 {
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continue
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}
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charts = append(charts, benchmarkReportChart{
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Title: fmt.Sprintf("GPU %d — Steady State", idx),
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Content: string(raw),
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})
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}
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return charts
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}
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func stripANSIEscapeSequences(raw string) string {
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return ansiEscapePattern.ReplaceAllString(raw, "")
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}
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// formatThrottleLine renders throttle counters as human-readable percentages of
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// the steady-state window. Only non-zero counters are shown. When the steady
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// duration is unknown (0), raw seconds are shown instead.
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func formatThrottleLine(t BenchmarkThrottleCounters, steadyDurationSec float64) string {
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type counter struct {
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label string
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us uint64
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}
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counters := []counter{
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{"sw_power", t.SWPowerCapUS},
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{"sw_thermal", t.SWThermalSlowdownUS},
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{"sync_boost", t.SyncBoostUS},
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{"hw_thermal", t.HWThermalSlowdownUS},
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{"hw_power_brake", t.HWPowerBrakeSlowdownUS},
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}
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var parts []string
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for _, c := range counters {
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if c.us == 0 {
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continue
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}
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sec := float64(c.us) / 1e6
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if steadyDurationSec > 0 {
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pct := sec / steadyDurationSec * 100
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parts = append(parts, fmt.Sprintf("%s=%.1f%% (%.0fs)", c.label, pct, sec))
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} else if sec < 1 {
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parts = append(parts, fmt.Sprintf("%s=%.0fms", c.label, sec*1000))
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} else {
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parts = append(parts, fmt.Sprintf("%s=%.1fs", c.label, sec))
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}
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}
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if len(parts) == 0 {
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return "none"
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}
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return strings.Join(parts, " ")
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}
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func renderBenchmarkSummary(result NvidiaBenchmarkResult) string {
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var b strings.Builder
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fmt.Fprintf(&b, "run_at_utc=%s\n", result.GeneratedAt.Format(time.RFC3339))
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fmt.Fprintf(&b, "benchmark_profile=%s\n", result.BenchmarkProfile)
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fmt.Fprintf(&b, "overall_status=%s\n", result.OverallStatus)
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fmt.Fprintf(&b, "gpu_count=%d\n", len(result.GPUs))
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fmt.Fprintf(&b, "normalization_status=%s\n", result.Normalization.Status)
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var best float64
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for i, gpu := range result.GPUs {
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fmt.Fprintf(&b, "gpu_%d_status=%s\n", gpu.Index, gpu.Status)
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fmt.Fprintf(&b, "gpu_%d_composite_score=%.2f\n", gpu.Index, gpu.Scores.CompositeScore)
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if i == 0 || gpu.Scores.CompositeScore > best {
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best = gpu.Scores.CompositeScore
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}
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}
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fmt.Fprintf(&b, "best_composite_score=%.2f\n", best)
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if result.Interconnect != nil {
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fmt.Fprintf(&b, "interconnect_status=%s\n", result.Interconnect.Status)
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fmt.Fprintf(&b, "interconnect_max_busbw_gbps=%.1f\n", result.Interconnect.MaxBusBWGBps)
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}
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return b.String()
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}
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