Visible to Intel only — GUID: GUID-F87B4CFF-2082-416C-BF34-804C386F92BE
Visible to Intel only — GUID: GUID-F87B4CFF-2082-416C-BF34-804C386F92BE
report-knob
Set configuration options for the specified report type.
Syntax
-report-knob<knobName>=<knobValue> |
Arguments
<knobName> | <knobValue> | Supported Report | Description |
---|---|---|---|
show-issues | true | false. Default: true | summary | Skip issue descriptions in the generated report.
NOTE:
This knob is available only for the HPC Performance Characterization analysis report. |
Actions Modified
Description
Use the -report-knob action-option to configure knob settings for a report action.
Example
This example generates the summary report for the HPC Performance Characterization analysis result and skips issue descriptions.
vtune -report summary -r r001hpc -report-knob show-issues=false
vtune: Executing actions 75 % Generating a report
Elapsed Time: 23.182s
GFLOPS: 14.748
CPU Utilization: 58.0%
Average CPU Usage: 13.920 Out of 24 logical CPUs
Serial Time: 0.069s (0.3%)
Parallel Region Time: 23.113s (99.7%)
Estimated Ideal Time: 14.010s (60.4%)
OpenMP Potential Gain: 9.103s (39.3%)
Memory Bound: 0.446
Cache Bound: 0.175
DRAM Bound: 0.216
NUMA: % of Remote Accesses: 38.3%
FPU Utilization: 2.7%
GFLOPS: 14.748
Scalar GFLOPS: 4.801
Packed GFLOPS: 9.947
Collection and Platform Info
Application Command Line: ./sp.B.x
User Name: vtune
Operating System: 3.10.0-327.el7.x86_64 NAME="Red Hat Enterprise Linux Server" VERSION="7.2 (Maipo)" ID="rhel" ID_LIKE="fedora" VERSION_ID="7.2" P
RETTY_NAME="Red Hat Enterprise Linux Server 7.2 (Maipo)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:redhat:enterprise_linux:7.2:GA:server" HOME_URL="https://w
ww.redhat.com/" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7" REDHAT_BUGZILLA_PRODUCT_VERSION=7.
2 REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux" REDHAT_SUPPORT_PRODUCT_VERSION="7.2"
Computer Name: test
Result Size: 1 GB
Collection start time: 19:04:30 13/07/2016 UTC
Collection stop time: 19:04:53 13/07/2016 UTC
Name: Intel(R) Xeon(R) E5/E7 v2 Processor code named Ivytown
Frequency: 2.694 GHz
Logical CPU Count: 24
CPU
Name: Intel(R) Xeon(R) E5/E7 v2 Processor code named Ivytown
Frequency: 2.694 GHz
Logical CPU Count: 24
This example generates the summary report for the HPC Performance Characterization analysis result and shows issue descriptions.
vtune -report summary -r r001hpc -report-knob show-issues=true
vtune: Executing actions 75 % Generating a report
Elapsed Time: 23.182s
GFLOPS: 14.748
CPU Utilization: 58.0%
| The metric value is low, which may signal a poor logical CPU cores
| utilization caused by load imbalance, threading runtime overhead, contended
| synchronization, or thread/process underutilization. Explore CPU Utilization
| sub-metrics to estimate the efficiency of MPI and OpenMP parallelism or run
| the Threading analysis to identify parallel bottlenecks for other
| parallel runtimes.
|
Average CPU Usage: 13.920 Out of 24 logical CPUs
Serial Time: 0.069s (0.3%)
Parallel Region Time: 23.113s (99.7%)
Estimated Ideal Time: 14.010s (60.4%)
OpenMP Potential Gain: 9.103s (39.3%)
| The time wasted on load imbalance or parallel work arrangement is
| significant and negatively impacts the application performance and
| scalability. Explore OpenMP regions with the highest metric values.
| Make sure the workload of the regions is enough and the loop schedule
| is optimal.
|
...