Hi Luca,
OpenMP is necessary for multi-threaded compilation (which I did not try myself yet).
So if you currently use the "-j" switch of btool to use multiple compilation threads you might want to keep the -fopenmp flag. Otherwise it's unnecessary.
Regards, Eduard
P.S.: I *think* I read about issues with multiple compilation threads in btool somewhere (which is why I never tried to use them so far) but I can't remember where... Anybody knows the latest status of multi-threaded compilation with buildtool on Windows? If it actually works it could easily cut my buildtimes in half! (if only I had known... ;-) ) Also we might want to update the Wiki since the recommended command line for compiling does *not* include -fopenmp while we still advertise the (then useless) "-j" switch
Am 07.03.2016 um 11:02 schrieb LucaDC:
Hi Eduard, I've written a small batch file to recompile btool using a line I've read somewhere on this forum. The line is:
g++ -O3 buildtool.cpp -o btool.exe -fopenmpIs the '-fopenmp' option significative or should I take it out? Thanks.
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