Cannot build on Windows

[mAch17]

Hi,
I tried building OCCA on Windows using MINGW, but it fails as it cannot find sys/sysctl.h .
I had to hack around a bit to run it on windows, by changing HOME/scripts/makefile at around line 110 to put bash instead of /bin/bash . However, I got stuck at the error mentioned as sys/sysctl.h is not available in Windows apparently. Is there any alternative ?

[nnnunnn]

Hi mAch17,
Preferred tools for Windows will be the (free) VC 2013 Community edition,
http://www.visualstudio.com/en-us/news/vs2013-community-vs.aspx
Project files will be available soon!
Nigel

[dmed256]

Thanks for the update, just pushed the change:

 /bin/bash -> bash

Strange, we have

#if (OCCA_OS == LINUX_OS) || (OCCA_OS == OSX_OS)
#  include <sys/sysctl.h>
#  include <dlfcn.h>
#endif

Can you post part of your compilation output
For instance, I see

clang++ -Wall -D__extern_always_inline=inline -fPIC -o /Users/dsm5/gitRepos/night/obj/occaOpenCL.o -D LINUX_OS=1 -D OSX_OS=2 -D WINDOWS_OS=4 -D OCCA_OS=OSX_OS -Wno-deprecated-declarations  -g -DOCCA_DEBUG_ENABLED=1 -DOCCA_CHECK_ENABLED=1 -DOCCA_OPENMP_ENABLED=0 -DOCCA_OPENCL_ENABLED=1 -DOCCA_CUDA_ENABLED=0 -DOCCA_COI_ENABLED=0 -c -I/Users/dsm5/gitRepos/night/lib -I/Users/dsm5/gitRepos/night/include -I./include /Users/dsm5/gitRepos/night/src/occaOpenCL.cpp

I'm looking for this part

-D LINUX_OS=1 -D OSX_OS=2 -D WINDOWS_OS=4 -D OCCA_OS=OSX_OS

which shows what OS you're using (might be faking Linux on MINGW?)

[dmed256]

The machines Travis uses doesn't like the change to the makefile, still debugging it before merging with the main branch

[dmed256]

Just merged with the main branch, could you try compiling again?

I added an extra check for Cygwin/MINGW in the makefile, hopefully it detects Windows_OS

Thanks =)

[mAch17]

Thanks for the quick response :) . The problem still persists. I think like as you said, MINGW faking Linux causes the problem.
g++ -O3 -o C:\Users\sony\Documents\OCCA2/obj/occaCUDA.o -D LINUX_OS=1 -D OSX_OS
=2 -D WINDOWS_OS=4 -D OCCA_OS=LINUX_OS -DOCCA_DEBUG_ENABLED=0 -DNDEBUG=1 -DOCCA_SHOW_WARNINGS=0 -DOCCA_CHECK_ENABLED=1 -DOCCA_OPENMP_ENABLED= -DOCCA_OPENCL_ENABLED=0 -DOCCA_CUDA_ENABLED=0 -DOCCA_COI_ENABLED=0

[mAch17]

Also am I supposed to update list of openCL supporting devices somewhere in config or will OCCA find openCL libs by itself ? Both my CPU and GPU support openCL, however it looks like OpenCL is not enabled in above compilation.

[dmed256]

No problem =)

URG, still not detecting Windows ( - n-)
I changed the OS-detection in the makefile, can you try pulling and compiling again?

If you have OpenCL installed but it's not enabled, set:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/libOpenCL.so
export OCCA_INCLUDE_PATH=$OCCA_INCLUDE_PATH:/path/to/CL/opencl.h

I'm not sure how the headers are handled in Windows (haven't programmed in Windows) or if the headers/libraries have different names

If it fails, please send me more info and I'll fix it ASAP =)

Thanks again!

EDIT: INCLUDE was mispelled

[dmed256]

Oh, also set

export PATH=$PATH:$OCCA_DIR/bin

and you'll be able to do

occainfo

to print out device info.
For instance, here's my output:

> occainfo
==============o=======================o==========================================
   CPU Info   |  Processor Name       | Intel(R) Core(TM) i5-4260U CPU @ 1.40GHz
              |  Cores                | 4
              |  Clock Frequency      | 1.4 GHz
              |  SIMD Instruction Set | SSE3
              |  SIMD Width           | 128 bits
              |  L1 Cache Size (d)    |  32 KB
              |  L2 Cache Size        | 256 KB
              |  L3 Cache Size        |   3 MB
==============o=======================o==========================================
    OpenCL    |  Device Name          | Intel(R) Core(TM) i5-4260U CPU @ 1.40GHz
              |  Driver Vendor        | Intel
              |  Platform ID          | 0
              |  Device ID            | 0
              |-----------------------+------------------------------------------
              |  Device Name          | HD Graphics 5000
              |  Driver Vendor        | Intel
              |  Platform ID          | 0
              |  Device ID            | 1
==============o=======================o==========================================

[mAch17]

Still encounters some problem.

C:\Users\sony\Documents\OCCA2/include/occaTools.hpp:28:0: warning: "NOMINMAX" redefined

define NOMINMAX // NBN: clear min/max macros

^
In file included from c:/mywares/gnu/mingw64/x86_64-w64-mingw32/include/c++/x86_
64-w64-mingw32/bits/c++config.h:430:0,
from c:/mywares/gnu/mingw64/x86_64-w64-mingw32/include/c++/iostream:38,
from C:\Users\sony\Documents\OCCA2/include/occa.hpp:4,
from C:\Users\sony\Documents\OCCA2/src/occaBase.cpp:1:
c:/mywares/gnu/mingw64/x86_64-w64-mingw32/include/c++/x86_64-w64-mingw32/bits/os_defines.h:45:0: note: this is the location of the previous definition
#define NOMINMAX 1
^
C:\Users\sony\Documents\OCCA2/src/occaBase.cpp:867:24: error: #if with no expression
#if OCCA_OPENMP_ENABLED^
C:\Users\sony\Documents\OCCA2/src/occaBase.cpp:1574:24: error: #if with no expression
#if OCCA_OPENMP_ENABLED^
make: *** [C:\Users\sony\Documents\OCCA2/obj/occaBase.o] Error 1
bash-3.1$

[dmed256]

Oh, I guess the OpenMP-detection script crashed

I just pushed to the main branch something that will hopefully fix it

Thanks again!

[dmed256]

Good news, I got it compiled with Cygwin and going to test MINGW soon

I'll have to change some of the code, I'll push tonight

[dmed256]

I got OCCA and some examples to compile using Cygwin (haven't tested OpenCL/CUDA)

I finally got MinGW set up (OS detection works) and compiles most files
Need to switch pthreads -> Windows threads (same with mutex's)