Marian Bubak1,2, Włodzimierz Funika1,2, Roland Wismüller3,

Tomasz Arodź1,2, Marcin Kurdziel1,2

1 Institute of Computer Science, AGH, Kraków, Poland2 Academic Computer Centre CYFRONET-AGH, Kraków, Poland

3 Fachgruppe BVS -- Universität Siegen, Siegen, Germany

Grid-enabled Performance Monitor

Performance Measurement with the G-PM

Goals of G-PM:G-PM is a performance monitor for parallel grid applications. It

was designed to provide performance data in an on-line fashion and can be easily applied to virtually any monitoring scenario.

Target users’ community:G-PM is provided for the users of parallel grid-enabled

applications as well as their developers.

Supported Platforms:G-PM was developed for Linux operating system running on i386

platform. Tested on RedHat Linux 7.3 and Slackware Linux 8.1. The X Window system and OCM-G monitoring infrastructure are needed to run G-PM

Software availability

Main Features of the G-PM

G-PM installation package is available at:: https://gridportal.fzk.de/distribution/crossgrid/autobuilt/i386-rh7.3-

gcc3.2.2/wp2/RPMS/

The user documentation can be downloaded from:http://www.eu-crossgrid.org/user_manuals.htm

G-PM is distributed under EDG License Agreement. Installation, use, modification and redistribution are permitted, as long as the EDG license is reproduced.

G-PM provides a predefined set of standard performance metrics for MPI applications.

G-PM supports a probe mechanism which allow to inspect application control flow in run time and retrieve content of internal application variables.

A dedicated Performance Measurement Specification Language can be used to define new performance metrics, specific to a given monitoring scenario.

Supports narrowing of performance monitoring to any set of computing sites, nodes, processes or application code regions.

Provides a convenient Graphical User Interface with a set of performance visualization widgets.

Retrieves low level performance data via appropriate programming of the CrossGrid OCM-G service.

Standard performance metrics: Operation invocation count and delay :

• in point-to-point and group communication

Data volume:• in point-to-point communication

Application related• CPU time

• Memory size Grid infrastructure related:

• CPU load, Other

User-defined metrics: Based on probes, i.e. special functions

inserted into program source code to mark certain execution points

Based on combining or transforming standard metrics, e.g. dividing results of one metric by results for another

References

1. Balis, B., Bubak, M.,  Funika, W., Szepieniec, T. and Wismüller, R.: Monitoring and Performance Analysis of Grid  Application. Lecture Notes in Computer Science Vol. 2657, Springer, 2003.

2. Bubak, M., Funika, W., Wismüller, R., Arodz, T. and Kurdziel, M.: The G-PM Tool for Grid-oriented Performance Analysis. Lecture Notes in Computer Science Vol. 2970, Springer, 2004.

3. Baliś, B., Bubak, M., Funika, W., Wismüller, R., Radecki, M., Szepieniec, T., Arodź, T. and Kurdziel, M. Performance Evaluation and Monitoring of Interactive Grid Applications Lecture Notes in Computer Science, Vol. 3241, Springer, 2004