On 19 Jul 2009, at 14:34, Joel de Guzman wrote:
Edward Grace wrote:
The actual generic_timer is chronometer agnostic (or should be) so any function you have to get a given high precision time should just 'go'. Perhaps if you post up your timer I can try that - or at least make an interface that will work.
I believe Overmind posted that sometime ago included in the 7Z file "Spirit_Price_Code1.7z"
Hi Joel, It appears to be in your SVN tree - however it doesn't really help. It seems to be unapologetically Windows only. I tried to compile your example but was unsure of what to pull from the SVN tree. Is it Spirit2? Could you please supply the precise svn repository? I tried these two: svn checkout https://spirit.svn.sourceforge.net/svnroot/spirit/ trunk/final/boost/ svn checkout https://spirit.svn.sourceforge.net/svnroot/spirit/ trunk/Spirit2x/ but wasn't sure which (if anything) was correct, so didn't know if the errors I was getting were because I was looking at the wrong thing or doing something dim. Regarding a cross-platform high frequency timer, I have uploaded "cycle.h" from the FFTW project to the Boost Vault, http://tinyurl.com/maylnc This appears to support a wide variety of platforms and compilers in a transparent manner. You end up with a call to a function of the form. ticks getticks(); on whatever platform you are using (thanks to some macro magic). It should work just fine with Windows and MSVC. The following #include "cycle.h" #include <iostream> int main() { std::cout << getticks() << std::endl; return 0; } should spit out a large number, usually the number of clock cycles since the CPU started. $ g++-4 -ansi -pedantic test.cpp In file included from test.cpp:3: cycle.h:172: warning: ISO C++ 1998 does not support 'long long' $ ./a.out 32572590328070 If you could confirm that the above snippet works for you and the appropriate SVN repository I'll have a bash at that timing again. After all, if it's written in a standards compliant platform agnostic manner if it works for me it's got to work for you ---------- right? ;-) Cheers, -ed