System Stability Tester

System Stability Tester is a CPU burning, memory testing and benchmarking utility. It calculates the PI number in thread pairs using algorithms like Gauss-Legendre or Borwein.

What System Stability Tester can do:
- Calculate up to 128 million digits of pi
- Create up to 32 threads
- Recognize the CPU model, manufacturer and operational frequency
- Compare the calculation results of all the threads after each step and issue a warning if something went wrong.
- Run continuously for up to 50 turns and log the results after each step and each turn
- Record the calculated digits of PI in a human readable text file
- Single threaded calculation of Pi for benchmarking, similar to the well know SuperPi benchmark.
- Checksum validation over the result.

System Stability Tester works under various platforms such as Linux x86, Linux amd64, Linux alpha, Tru64 Unix, Solaris 10/x86, Solaris 10/SPARC, AIX 5.3, HP UX 11.11i PA-RISC, Mac OS X i386, Win32 NT Class and Win64.

We usually provide static or partially static binaries for all the above unix and unix-like platforms. We also provide installation executables for the Microsoft Windows platforms soon after the release of the source code.

System Stability Tester depends on the GNU Multiple Precision Arithmetic Library, the fastest bignum library on the planet!

v.1.5.1
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Changes since v.1.3.0:
Update button introduced for latest version check.
Updated systester.pro
KDE and Gnome menu icon introduced (through install-desktop.sh script)
FAQ.txt added in the source tree.
Systester now depends on QT >= 4.5.3
Display available memory in Darwin
Checksum validation re-implemented in order to bypass gcc bug
New splash screen with about and license windows
License button removed
Flattr button added
Minor bugs fixed
Aesthetic changes
Terminal autoscroll
PI and log files now lay on user's home directory for GUI version

v.1.3.0
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Bugfix in configure script. --prefix and "make install" now work properly.
Bugfix: wrong checksum detection when gcc used in 32 bit platforms.
Support for GNU PTH.
Updated systester.pro
qconf directory added in the source tree.
Systester now reports the compiler and the flags used for GMP compilation.

v.1.2.0
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Splash screen does not stall under unix ports anymore.
Systester now remembers the font selected.
Mingw32 port revived.
Mingw64 port introduced.
About screen now catches mouse clicks.
Source code cleanup.

v.1.1.0
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Command line interface revived.
Mode button introduced.
Two minor memory leaks fixed.
Extended source code clean up and changes.
Display the total installed physical memory, visible by the OS.
Support for Solaris 10/Sparc.
Support for AIX 5.3/Power.

v.1.0.3
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Configure script minor changes.

v.1.0.2
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Just a bugfix over the recent Mac OS X port.

v.1.0.1
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Support for Mac OS X (Darwin i386).
Minor bug fixing.

v.1.0.0
--------
Support for win64 platform.
Support for x86 and x64 Microsoft Visual C++.
Gauss-Legendre algorithm implemented.
ILP width report dropped.
Display the mode the program runs (32 or 64 bit).
Minor changes to the GUI.

v.0.9.2
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Checksum validation added for both little and big endian machines.
Logfile now reports the checksum validation results for every turn.
Bugfix: CPUPI.DAT now contains the all the computed digits of pi.
Elapsed time with millisecond accuracy.
More accurate CPU frequency detection.
Bugfix: The elapsed time of the last loop is now correct.
Source code clean-up.

v.0.9.1
--------
No new features added or bugs fixed. Dependency on pthreads-win32 removed. Using native Windows threads instead.

v.0.9.0
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Transition from Qt3 to Qt4
Stop button added
Configure script now checks for Qt 4 build environment
Minor bugs fixed
Minor cosmetic changes

v.0.8.0
--------
Minor bugs fixed.
Minor cosmetic changes .
Icon changed.
A splash screen introduced.
Support for HPUX 11.x pa32.
Display the GMP version.
Display the ILP width.

v.0.7.3
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A serious memory leak fixed.
Configure script now checks for GMP>=3.1 and QT>=3.3.
Makefile now can use the PREFIX environment variable to install the binary.
Report the number of active cpus/cores.
Support for x86 Solaris 10.

Web page launched
-----------------------
System Stability Tester now has its own web page hosted by Sourceforge.net. The URL is http://systester.sourceforge.net

v.0.7.2
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Pi calculation itself became multi threaded.
Single thread pi calculation added. Usefull for benchmarking purposes only.
Configure script for Unix systems.

v.0.7.1
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New icon.
New more accurate and faster CPU frequency detection function under unix platforms.
Support for Linux/Alpha and Tru64 unix.
Updated about information.
Buttons disabled during Pi calculations.