<div dir="ltr">Hi Iain,<div><br></div><div>Thanks for the reply. I renamed the modified file with extenssion "ssmp". And then I tried "make ARCH=Cygwin-i686-gfortran VERSION=ssmp", and it seems to work. The output file indicates that 4 threads are being used. </div><div><br></div><div>Thanks a lot!</div><div><br></div><div>Gary<br><br>On Monday, July 4, 2016 at 11:01:45 PM UTC-7, IBethune wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">Hi Gary,
<br>
<br>Did you make sure to "make ARCH=Cygwin-i686-gfortran VERSION=sopt clean” after you modified the arch file?
<br>
<br>You can check if your run has used multiple threads by looking near the top of your output for a line like:
<br>
<br>"GLOBAL| Number of threads for this process                                    2”
<br>
<br>Usually, if you don’t set the OMP_NUM_THREADS variable, it should spawn as many threads as there are available cores, but I’m not sure what the expected behaviour on Cygwin is, you might want to set OMP_NUM_THREADS manually before running CP2K.
<br>
<br>- Iain
<br>
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<br>Iain Bethune
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<br>> On 5 Jul 2016, at 00:43, Gary Tom <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="iO_nOhsJBwAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">gar...@mail.mcgill.ca</a>> wrote:
<br>> 
<br>> Hello,
<br>> 
<br>> I am still very new to CP2K. I am trying to create an OpenMP binary file (cp2k.ssmp) to have the projects run faster (refer to: <a href="https://groups.google.com/forum/#!topic/cp2k/OyVoivjff3o" target="_blank" rel="nofollow" onmousedown="this.href='https://groups.google.com/forum/#!topic/cp2k/OyVoivjff3o';return true;" onclick="this.href='https://groups.google.com/forum/#!topic/cp2k/OyVoivjff3o';return true;">https://groups.google.com/<wbr>forum/#!topic/cp2k/OyVoivjff3o</a><wbr>) 
<br>> 
<br>> I have attempted to just use the "Cygwin-i686-gfortran.sopt" file, with an additional -fopenmp tag in FCFLAGS, but I do not see any improvement in the run time. What do I need to have in the ARCH file to properly get a "cp2k.ssmp" file for Cygwin?
<br>> 
<br>> Thanks,
<br>> 
<br>> Gary
<br>> 
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<br></blockquote></div></div>