Profiling mlpack on Linux systems

Rasoori__Sandeep · ‎10-12-2017

Hello,

I'm trying to profile mlpack(http://www.mlpack.org/index.html), a machine learning library. I'm currently running VTune Amplifier on a Ubuntu system. I'm running into the following issue:

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/opt/intel/vtune_amplifier_2018.0.2.525261/bin64/amplxe-cl -collect hotspots -app-working-dir Documents/iris -- /usr/local/bin/mlpack_linear_regression --training_file Downloads/iris.txt -M out.txt -v

amplxe: Collection started. To stop the collection, either press CTRL-C or enter from another console window: amplxe-cl -r /home/sandeep/r007hs -command stop.
[DEBUG] Compiled with debugging symbols.
[FATAL] Cannot open file 'Downloads/iris.txt'. 

terminate called after throwing an instance of 'std::runtime_error'
  what():  fatal error; see Log::Fatal output
amplxe: Collection stopped.
amplxe: Using result path `/home/sandeep/r007hs'
amplxe: Executing actions 19 % Resolving information for `libgcc_s.so.1'       
amplxe: Warning: Cannot locate debugging symbols for file `/lib/x86_64-linux-gnu/libgcc_s.so.1'.
amplxe: Executing actions 19 % Resolving information for `libstdc++.so.6'      
amplxe: Warning: Cannot match the module with the symbol file `/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.21': checksum is different. Make sure to specify the correct path to the symbol file in the Binary/Symbol Search list of directories.
amplxe: Warning: Cannot locate debugging symbols for file `/usr/lib/x86_64-linux-gnu/libstdc++.so.6'.
amplxe: Executing actions 75 % Generating a report                             
Collection and Platform Info
----------------------------
Parameter                 r007hs                                                                                                                                                                                                                                                                                                                     
------------------------  ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Application Command Line  /usr/local/bin/mlpack_linear_regression "--training_file" "Downloads/iris.txt" "-M" "out.txt" "-v"                                                                                                                                                                                                                         
Operating System          4.10.0-37-generic NAME="Ubuntu"
VERSION="16.04.3 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.3 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
Computer Name             Sandeep                                                                                                                                                                                                                                                                                                                    
Result Size               2605665                                                                                                                                                                                                                                                                                                                    
Collection start time     19:51:47 12/10/2017 UTC                                                                                                                                                                                                                                                                                                    
Collection stop time      19:51:48 12/10/2017 UTC                                                                                                                                                                                                                                                                                                    

CPU
---
Parameter          r007hs                                          
-----------------  ------------------------------------------------
Name               Intel(R) Core(TM) Processor code named Broadwell
Frequency          2194918899                                      
Logical CPU Count  4                                               

Summary
-------
Elapsed Time:       0.022
Paused Time:        0.0  
CPU Time:           0.020
Average CPU Usage:  0.920
amplxe: Executing actions 100 % done

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However, if I try running just the executable itself using the below command I'm getting the expected output without any errors.

/usr/local/bin/mlpack_linear_regression "--training_file" "Downloads/iris.txt" "-M" "out.txt" "-v"

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Note that the above command is replica of the application command from the first execution log. So, I'm not sure what I'm missing while running it with VTune Amplifier. Kindly help me resolve this issue.

Regards,

Vladimir_R_Intel · ‎10-13-2017

Hi,

seems that you set incorrect working directory "-app-working-dir Documents/iris". Please try to set the full path to the place where you were when made the successful launch.

Rasoori__Sandeep · ‎10-13-2017

Thanks. Mentioning the entire paths for both the working directory and initialization files seem to run error free.

Regards,