A free Fortran 2008, 2018 coarrays course with notes and exercises
Coarrays are a feature of standard Fortran since 2008 standard. The 2018 standard adds a lot of functionality, e.g. collectives, teams, events. Coarrays are used extensively in the CGPACK library (http://cgpack.sf.net) and other projects. The course is aimed at experienced Fortran users. Working knowledge of Fortran is assumed. The course is designed for a 1 day study with an instructor. Multiple exercises with full solutions are accompanied by notes in PDF or HTML. We teach this course to staff and students at the University of Bristol, UK, as part of the set of HPC courses offered to HPC users at Bristol. Exercises have been verified with Intel and GCC/OpenCoarrays. All course materials are released under BSD license. We welcome contributions, provided you are happy to release your work under BSD license. We also welcome comments and problem reports. Contact CMPLX Engineering (http://cmplx.uk) if you want us to deliver this course to your organisation.
This is a simple, modular PHP class designed to record execution time benchmarks throughout different parts of a script. Compatible with virtually any PHP script, the code can be added/removed quickly and with ease. Accurate to the microsecond.
Java and C Comparative Performance Benchmarks
A collection of software benchmarks developed to compare the performance of Java with C on identical code. No language libraries were used to avoid implementation differences. Some of the benchmarks are also implemented in Python and Scala. There are benchmarks for bit twiddling, numerical computing, data structure manipulation, concurrent computing, callouts to native libraries, and, graphics processing units (GPU) utilization.
SarBox helps user to parse or analyze sar data
The software program (SarBox) parses and analyzes SAR data in charts or text formats. SAR is cumulative activity counters in the operating system. It is the most comprehensive command which helps to monitor performance of various Linux / Solaris subsystems (CPU, Memory, I/O, Disk, Network, etc) all in same log. This makes it difficult to analyze since every counter data is dumped into the log file. SarBox helps to analyze this log file and present data in graphical charts or text format. To collect sar statistics from an environment, use below syntax [user@host ~]# sar -A 30 2 > sar_linux.log “30 2” reports for every 30 seconds and total of 2 times, written in sar_linux.log.
ViennaProfiler allows to compare execution times of full programs or parts of a program. Execution times are stored in a MySQL database and conveniently analyzed via a web-interface. A C++ client API is provided, other languages can also be used.