| 1 | <div><blockquote class="gmail_quote" style="margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; margin-left: 0.80ex; border-left-color: #cccccc; border-left-width: 1px; border-left-style: solid; padding-left: 1ex"> |
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| 2 | How much is the time difference between the 64-bit and 32-bit versions?<br> You may also want to try with a single 64-bit OS and compiling<br> separately for 32-bit or 64-bit via the -m32 and -m64 options to gcc and<br> |
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| 3 | gfortran.</blockquote><div><br></div><br></div>The time difference between the 64-bit and 32-bit versions is not so much but enough: it does an identical procedure under 64-bit OS during 8.4-8.5 min and under 32-bit OS during 7.5-7.6 min.<br> |
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| 4 | Sorry, but I didn't understand about compiling. I compile like it is described in the install.pdf, through commands:<br>>/home/you/libraries/mpich2-1.1/configure -prefix=/home/you/mpich2-install 2>&1 | tee c.txt<br> |
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| 5 | and then >make 2>&1 | tee m.txt and >make install 2>&1 | tee mi.txt<br>How should I compile with -m32 and -m64 options? These optitions are invalid for commands configure and make. Or should I compile separately each source-file of mpich2 with gcc and gfortran? I don't completely understand how to carry out such compilation, and whether it will work after this separate compilation. Is there any description of it in ../mpich2-1.1/doc/ ?<br> |
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| 6 | <br>Alex<br> |
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