Intel Inspector¶
Intel Inspector is a memory and threading error checking tool for users
developing serial and multithreaded applications on Windows and Linux operating
systems. The essential features of Intel Inspector for Linux are:
- Standalone GUI and command-line environments
- Preset analysis configurations (with some configurable settings) and the ability to create custom analysis configurations to help the user control analysis scope and cost
- Interactive debugging capability so one can investigate problems more deeply during the analysis
- A large number of reported memory errors, including on-demand memory leak detection
- Memory growth measurement to help ensure that the application uses no more memory than expected
- Data race, deadlock, lock hierarchy violation, and cross-thread stack access error detection
Options for the Collect Action¶
| Option | Description |
|---|---|
| mi1 | Detect memory leaks |
| mi2 | Detect memory problems |
| mi3 | Locate memory problems |
| ti1 | Detect deadlocks |
| ti2 | Detect deadlocks and data races |
| ti3 | Locate deadlocks and data races |
Options for the Report Action¶
| Option | Description |
|---|---|
| summary | A brief statement of the total number of new problems found grouped by problem type |
| problems | A detailed report of detected problem sets in the result, along with their location in the source code |
| observations | A detailed report of all code locations used to form new problem sets |
| status | A brief statement of the total number of detected problems and the number that are not investigated, grouped by category |
For more information on Intel Inspector, please visit https://software.intel.com/en-us/intel-inspector-xe.
Environmental models for Inspector on UL-HPC¶
module purge
module load swenv/default-env/v1.2-20191021-production
module load toolchain/intel/2019a
module load tools/Inspector/2019_update4
module load vis/GTK+/3.24.8-GCCcore-8.2.0
Interactive Mode¶
To launch Inspector on Iris, we recommend that you use the command
line tool inspxe-cl to collect data via batch jobs and then display
results using the GUI, inspxe-gui, on a login node.
# Compilation
$ icc -qopenmp example.cc
# Result collection
$ inspxe-cl -collect mi1 -result-dir mi1 -- ./a.out
# Result view
$ cat inspxe-cl.txt
=== Start: [2020/04/08 02:11:50] ===
2 new problem(s) found
1 Memory leak problem(s) detected
1 Memory not deallocated problem(s) detected
=== End: [2020/04/08 02:11:55] ===
Batch Mode¶
Shared memory programming model (OpenMP)¶
Example for the batch script:
#!/bin/bash -l
#SBATCH -J Inspector
#SBATCH -N 1
###SBATCH -A <project_name>
#SBATCH -c 28
#SBATCH --time=00:10:00
#SBATCH -p batch
module purge
module load swenv/default-env/v1.2-20191021-production
module load toolchain/intel/2019a
module load tools/Inspector/2019_update4
module load vis/GTK+/3.24.8-GCCcore-8.2.0
inspxe-cl -collect mi1 -result-dir mi1 -- ./a.out`
# Result view
$ cat inspxe-cl.txt
=== Start: [2020/04/08 02:11:50] ===
2 new problem(s) found
1 Memory leak problem(s) detected
1 Memory not deallocated problem(s) detected
=== End: [2020/04/08 02:11:55] ===
Distributed memory programming model (MPI)¶
To compile:
# Compilation
$ mpiicc -qopenmp example.cc
#!/bin/bash -l
#SBATCH -J Inspector
#SBATCH -N 2
###SBATCH -A <project_name>
#SBATCH --ntasks-per-node 28
#SBATCH --time=00:10:00
#SBATCH -p batch
module purge
module load swenv/default-env/v1.2-20191021-production
module load toolchain/intel/2019a
module load tools/Inspector/2019_update4
module load vis/GTK+/3.24.8-GCCcore-8.2.0
srun -n {SLURM_NTASKS} inspxe-cl -collect=ti2 -r result ./a.out
To see result output:
$ cat inspxe-cl.txt
0 new problem(s) found
=== End: [2020/04/08 16:41:56] ===
=== End: [2020/04/08 16:41:56] ===
0 new problem(s) found
=== End: [2020/04/08 16:41:56] ===
Tip
If you find some issues with the instructions above, please report it to us using support ticket.
Last update: November 13, 2024