cmake energyplus build

asked 2017-08-05 21:36:38 -0500

ngkhanh
2156 ●1 ●3 ●12

updated 2017-08-06 06:50:45 -0500

i try to get energyplus complied but cmake gets error when i run configure with cmake and VS 2017: cmake_configure I have set source code as cloned directory of energyplus and build folder in new directory. there are 2 cmake log files : cmake_error and cmake_output.
It seems i need setup fortran complier, need i ?

Which step i can setup "-march=native"as @MarkAdams recommendation in https://unmethours.com/question/10106... ?

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answered 2017-08-07 10:31:31 -0500

Jason DeGraw

2208 ●6 ●10 https://github.com/jasondegraw

Visual Studio 2017 isn't officially supported right now, but I've been able to build with it personally with no issues.

Your CMake configure has too many things selected for a first-time build. I'd delete the build directory and start over. You'll still need to point CMake at a Python, but all of the rest you have selected aren't necessary to build E+ itself. It's best to get the main executable building and then add stuff as you need it. If you want to build the Fortran utilities you will need a Fortran compiler, but again that is not required.

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Thanks, i got my build works for the first time. how can i setup "-march=native" for avx config to get higher speed ?

ngkhanh ( 2017-08-07 17:42:59 -0500 )edit

I think Mark's original comment applies to gcc or clang. For MSVC I guess the equivalent would be /arch which is described here. It is possible to modify the CMake build to include it, but unless you've done that before I'd stick to using the directions at the above link. Note that you may not see speedup.

Jason DeGraw ( 2017-08-07 18:06:29 -0500 )edit

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answered 2017-08-07 04:22:23 -0500

Julien Marrec

29112 ●87 ●74 http://www.effibem.com/

Did you get any confirmation from anyone that Visual Studio 2017 is actually supported? The wiki says Visual Studio 2015 Community for Windows Desktop, at least update 3.

I like to use the latest version of everything, but trust my experience here: if you want to build OpenStudio or EnergyPlus, follow the instructions to the letter. At least that's tested and has worked on someone's computer. See the wiki

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Thank Julien, i have done EP complied as wiki suggestion. How would OpenStudio compile would more time and resources than EP compile ? My CPU is 100% all building time.

ngkhanh ( 2017-08-10 17:30:55 -0500 )edit

Not sure I understood the question, but if you're asking if openstudio would be longer to build, then definitely yes. OpenStudio has a LOT more dependencies. The initial compile time for OpenStudio is in the range of several hours.