fix(amd-stress): include VRAM load in GST burn

audit/internal/platform/sat.go

@@ -146,28 +146,36 @@ func (s *System) RunAMDStressPack(ctx context.Context, baseDir string, durationS
 	if err := ensureAMDRuntimeReady(); err != nil {
 		return "", err
 	}
-	// Write RVS GST config to a temp file
-	rvsCfg := fmt.Sprintf(`actions:
+	// Enable copy_matrix so the same GST run drives VRAM traffic in addition to compute.
+	rvsCfg := amdStressRVSConfig(seconds)
+	cfgFile := "/tmp/bee-amd-gst.conf"
+	_ = os.WriteFile(cfgFile, []byte(rvsCfg), 0644)
+
+	return runAcceptancePackCtx(ctx, baseDir, "gpu-amd-stress", amdStressJobs(seconds, cfgFile), logFunc)
+}
+
+func amdStressRVSConfig(seconds int) string {
+	return fmt.Sprintf(`actions:
 - name: gst_stress
   device: all
   module: gst
   parallel: true
   duration: %d
-  copy_matrix: false
+  copy_matrix: true
   target_stress: 90
   matrix_size_a: 8640
   matrix_size_b: 8640
   matrix_size_c: 8640
 `, seconds*1000)
-	cfgFile := "/tmp/bee-amd-gst.conf"
-	_ = os.WriteFile(cfgFile, []byte(rvsCfg), 0644)
+}
 
-	return runAcceptancePackCtx(ctx, baseDir, "gpu-amd-stress", []satJob{
+func amdStressJobs(seconds int, cfgFile string) []satJob {
+	return []satJob{
 		{name: "01-rocm-smi.log", cmd: []string{"rocm-smi"}},
 		{name: "02-rocm-bandwidth-test.log", cmd: []string{"rocm-bandwidth-test"}},
 		{name: fmt.Sprintf("03-rvs-gst-%ds.log", seconds), cmd: []string{"rvs", "-c", cfgFile}},
 		{name: fmt.Sprintf("04-rocm-smi-after.log"), cmd: []string{"rocm-smi", "--showtemp", "--showpower", "--csv"}},
-	}, logFunc)
+	}
 }
 
 // ListNvidiaGPUs returns GPUs visible to nvidia-smi.