Re: Poor execution speeds using -mno-cygwin g77 option

2004-06-19 Thread Igor Pechtchanski
On Sat, 19 Jun 2004, Reini Urban wrote: > Igor Pechtchanski schrieb: > > On Fri, 18 Jun 2004, Douglas A. Vechinski wrote: > >>To my knowledge, I'm not using floating point emulation. But if I was, > >>how would I be able to check? > > > > Actually, my WAG may turn out to be right after all.

Re: Poor execution speeds using -mno-cygwin g77 option

2004-06-19 Thread Reini Urban
Igor Pechtchanski schrieb: > On Fri, 18 Jun 2004, Douglas A. Vechinski wrote: >>To my knowledge, I'm not using floating point emulation. But if I was, >>how would I be able to check? > > Actually, my WAG may turn out to be right after all. Check the default > target architecture (processor) for b

Re: Poor execution speeds using -mno-cygwin g77 option

2004-06-18 Thread Igor Pechtchanski
On Fri, 18 Jun 2004, Douglas A. Vechinski wrote: > Igor Pechtchanski wrote: > > >>Even though Case C, when the -mno-cygwin flag is not used, the > >>difference is still significant. compared to Case A. > > > >That's not surprising. Cygwin is a POSIX emulation environment *on top* > >of Windows --

Re: Poor execution speeds using -mno-cygwin g77 option

2004-06-18 Thread Douglas A. Vechinski
Igor Pechtchanski wrote: Even though Case C, when the -mno-cygwin flag is not used, the difference is still significant. compared to Case A. That's not surprising. Cygwin is a POSIX emulation environment *on top* of Windows -- naturally the performance of any Cygwin tool will be slower than t

Re: Poor execution speeds using -mno-cygwin g77 option

2004-06-18 Thread Igor Pechtchanski
On Fri, 18 Jun 2004, Douglas A. Vechinski wrote: > I am experiencing significantly longer exection speeds when compiling > with g77 under cygwin using the -mno-cygwin option. Even though you're invoking the Cygwin g77, by using -mno-cygwin you're essentially cross-compiling to the MinGW environme

Poor execution speeds using -mno-cygwin g77 option

2004-06-18 Thread Douglas A. Vechinski
I am experiencing significantly longer exection speeds when compiling with g77 under cygwin using the -mno-cygwin option. I primarily work and develop under Linux. However, I need to provide a user with an executable (of a Fortran program) that runs under windows. I initially performed some t