User Guide

  • 2020
  • 06/18/2020
  • Public Content
Contents

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.
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.
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. | ...

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804