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...tion time for parallel one larger than sequential one ???? note I execute both of these program in gcc compiler and i found there is a difference in the execution time between these programs.The parallel one was faster than the sequential one. i will be thankful if any one can help me Regards esraa

Hi esraa, > i am using LLVM to execute two programs both of them was exactly > similar but the difference was the first one is a sequential program > has three functions. In the second program i am trying to execute it > by giving each function to thread (three thread work in parallel way) >...

Duncan Sands <baldrick <at> free.fr> writes: > > Hi esraa, > > > i am using LLVM to execute two programs both of them was exactly > > similar but the difference was the first one is a sequential program > > has three functions. In the second program i am trying to execute it > > by giving each function to thread (three thread w...

...er the transformation, but in llvm I didn’t see any difference in llvm. In llvm the execution time after the transformation became worse . if evey thing is ok and no error My question is Are there any strategies that llvm use it to treat with threads that make the performance worse. many thanks Esraa

...tion time for parallel one larger than sequential one ???? note I execute both of these program in gcc compiler and i found there is a difference in the execution time between these programs.The parallel one was faster than the sequential one. i will be thankful if any one can help me Regards esraa

> I would be happy if you give me an insight into what could have caused the > difference. No idea. Maybe you forgot to turn optimizations on when compiling? Otherwise you are going to have to send in your programs along with an explanation of how you compiled them exactly (exact sequence of commands) both for gcc and LLVM. Ciao, Duncan.