This patch enables Torch7 compilation on Windows using mingw32 (or tdm-gcc with msys/msys2).

The steps needed:

1. Install torch/cwrap and torch/paths
2. Run the following commands:

cmake -E make_directory build
cd build
cmake .. -G "MSYS Makefiles" -DCMAKE_BUILD_TYPE=Release -DLUALIB=lua51.dll -DLUA_INCDIR="%LUA_INCDIR%" -DLUA_LIBDIR="%LUA_LIBDIR%" -DLUA="%LUA%"
make

Related ticket: #150. I've tested this under Windows 8.1 using msys2 and tdm-gcc-4.8, but it should work with other versions and configurations of mingw.

Hey everyone.

Over the last month or so, Ronan, Clement, Koray and I have been consolidating community and developer feedback, as well as thinking hard on the core design changes needed to keep Torch competitive and effective.

We prepared a first draft of the roadmap, located here:

https://github.com/torch/torch7/blob/master/ROADMAP.md

Everyone is invited to read it, give their opinions, propose changes, and participate in making the roadmap more sensible in your eyes.

We are extremely open to feedback and will incorporate any changes or additions that the majority think that are sensible.

Looking forward to your suggestions.

Work in Progress.

Initial work by Roberth Guthrie (@rguthrie3) and more additions ongoing by Keren Zhou (@jokeren)

This speeds up our Tensor Math ops. On add, we have up to 11x speedup already, and more to come.

Check buildlog here: https://buildd.debian.org/status/package.php?p=lua-torch-torch7&suite=experimental#problem-1

All architectures fails to build except for x86.

In Lua, explicitly calling :free() on a Tensor is currently buggy - it actually frees the THTensor struct itself in C, making any future reference to it invalid (leading to segfaults). This patch makes :free() only act on the referenced storage, but preserves the THTensor struct intact (and also maintains the ref counter to 1) — the result: the user can free a tensor-referenced storage from Lua, but the THTensor struct itself will always be handled by the GC.

There might be a memory leak in the following (toy) example:

for i=1,10000 do
  local a = torch.Tensor(10000):zero()
end

This allocates around 600MB of memory, and I can't free it afterwards, even after calling collectgarbage() several times. If I run this loop several times, more memory gets used and no way to get it back, unless closing luajit. If I add a collectgarbage() inside the for loop, everything works fine, but the loop takes 20x more time to complete.

I understand that torch Tensors are allocated on C side, and that memory is freed when there is no more reference to the underlying data. I thought it could be a luajit problem, but using jit.off() didn't change anything.

Any thoughts about that ? Or is the only solution to avoid Tensor creation at all price, reusing already created Tensors in situations like that ?

Example Input: luarocks install nn

Output:

Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/torch/rocks/master - Failed downloading https://raw.githubusercontent.com/torch/rocks/master/manifest Warning: Failed searching manifest: Failed fetching manifest for https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master - Failed downloading https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/manifest

Version: LuaRocks 2.2.0beta1

The Lua garbage collector isn't aware of torch-allocated memory, so it doesn't know when to run the GC and the user ends up having to call collectgarbage() manually from their script, or running out of memory.

This PR lets THAlloc and THRealloc attempt lua GC if malloc/realloc fails.

This idea is thanks to @colesbury, I just had some free time to implement it.

To demonstrate, you can run the following

require 'torch'
for i=1,1000 do
  print(i)
  a = torch.FloatTensor(1000000000):zero()
end

This loop will run out of memory prior to this PR, but now the GC will be run.

I'll add this to cutorch as will if this gets acepted.

@soumith @andresy

The following are the error messages received after running './install.sh'

1 error detected in the compilation of "/tmp/tmpxft_000005a7_00000000-6_THCTensorMathPairwise.cpp1.ii".
CMake Error at THC_generated_THCTensorMathPairwise.cu.o.cmake:267 (message):
  Error generating file
  /home/vipaacc/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMathPairwise.cu.o

lib/THC/CMakeFiles/THC.dir/build.make:4216: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathPairwise.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathPairwise.cu.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/home/vipaacc/torch/extra/cutorch/lib/THC/generic/THCTensorMath.cu(393): error: more than one operator "==" matches these operands:
            function "operator==(const __half &, const __half &)"
            function "operator==(half, half)"
            operand types are: half == half

/home/vipaacc/torch/extra/cutorch/lib/THC/generic/THCTensorMath.cu(414): error: more than one operator "==" matches these operands:
            function "operator==(const __half &, const __half &)"
            function "operator==(half, half)"
            operand types are: half == half

2 errors detected in the compilation of "/tmp/tmpxft_00000605_00000000-6_THCTensorMath.cpp1.ii".
CMake Error at THC_generated_THCTensorMath.cu.o.cmake:267 (message):
  Error generating file
  /home/vipaacc/torch/extra/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMath.cu.o


lib/THC/CMakeFiles/THC.dir/build.make:2735: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o] Error 1
CMakeFiles/Makefile2:172: recipe for target 'lib/THC/CMakeFiles/THC.dir/all' failed
make[1]: *** [lib/THC/CMakeFiles/THC.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

Error: Build error: Failed building.

Torch is failing to build on ARMv8 (Tegra X1) under Ubuntu 16.04 aarch64. During configuration: -- Could not find hardware support for NEON on this machine.

Then while building:

[ 46%] Building C object lib/TH/CMakeFiles/TH.dir/THVector.c.o
In file included from /tmp/luarocks_torch-scm-1-6670/torch7/lib/TH/THVector.c:2:0:
/tmp/luarocks_torch-scm-1-6670/torch7/lib/TH/generic/THVectorDispatch.c: In function ‘THByteVector_vectorDispatchInit’:
/tmp/luarocks_torch-scm-1-6670/torch7/lib/TH/generic/simd/simd.h:60:3: error: impossible constraint in ‘asm’
   asm volatile ( "cpuid\n\t"
   ^
/tmp/luarocks_torch-scm-1-6670/torch7/lib/TH/generic/simd/simd.h:60:3: error: impossible constraint in ‘asm’
   asm volatile ( "cpuid\n\t"
   ^
lib/TH/CMakeFiles/TH.dir/build.make:350: recipe for target 'lib/TH/CMakeFiles/TH.dir/THVector.c.o' failed

It looks like FindARM.cmake searches /proc/cpuinfo for 'neon'. However, ARMv8 output is the following:

Features        : fp asimd aes pmull sha1 sha2 crc32
CPU implementer : 0x41
CPU architecture: 8
CPU variant     : 0x1
CPU part        : 0xd07
CPU revision    : 1
Hardware        : jetson_tx1

It appears like other [1][2] ARMv8 platforms may also list asimd in leui of neon in their /proc/cpuinfo.

Here there is a model I've trained some time ago.

https://engineering.purdue.edu/elab/smartEYE-data/net/17cate9filter.tar.gz

With the latest version of torch / cunn the object is no longer deserialisable. This is awful. I can no longer access my previously trained models.

Reverting back torch / cunn (and many more packages) to, say, 1 year ago, fixes the problem.

th> require 'cunn';
                                                                      [0.9739s] 
th> net = torch.load('model-127.net')
/home/atcold/torch/install/share/lua/5.1/torch/File.lua:301: Failed to load function from
 bytecode: (binary): cannot load incompatible bytecode
stack traceback:
    [C]: in function 'error'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:301: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/nn/Module.lua:154: in function 'read'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/nn/Module.lua:154: in function 'read'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:369: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/nn/Module.lua:154: in function 'read'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:351: in function 'readObject'
    /home/atcold/torch/install/share/lua/5.1/torch/File.lua:409: in function 'load'
    [string "net = torch.load('model-127.net')"]:1: in main chunk
    [C]: in function 'xpcall'
    /home/atcold/torch/install/share/lua/5.1/trepl/init.lua:669: in function 'repl'
    ...cold/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:199: in main chunk
    [C]: at 0x00406670  
                                                                      [0.1411s] 

Problem using torch library on Windows: SciTE:

lua: torch\init.lua:12: module 'paths' not found:
no field package.preload['paths']
no file '.\paths.lua'
no file 'C:\Program Files (x86)\Lua\5.1\lua\paths.lua'
no file 'C:\Program Files (x86)\Lua\5.1\lua\paths\init.lua'
no file 'C:\Program Files (x86)\Lua\5.1\paths.lua'
no file 'C:\Program Files (x86)\Lua\5.1\paths\init.lua'
no file 'C:\Program Files (x86)\Lua\5.1\lua\paths.luac'
no file '.\paths.dll'
no file '.\paths51.dll'
no file 'C:\Program Files (x86)\Lua\5.1\paths.dll'
no file 'C:\Program Files (x86)\Lua\5.1\paths51.dll'
no file 'C:\Program Files (x86)\Lua\5.1\clibs\paths.dll'
no file 'C:\Program Files (x86)\Lua\5.1\clibs\paths51.dll'
no file 'C:\Program Files (x86)\Lua\5.1\loadall.dll'
no file 'C:\Program Files (x86)\Lua\5.1\clibs\loadall.dll'
stack traceback:
[C]: in function 'require'
init.lua:12: in main chunk
[C]: ?
Exit code: 1

do not write about Linux, I saw: Torch test.sh, /usr/bin/lua: module 'paths' not found

Bellow is my computer specs as well as the log upon trying to install. Could someone help ?

` torch git:(master) ✗ ./install.sh Prefix set to /Users/laeh/torch/install Installing Lua version: LUAJIT21 CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/CMakeLists.txt:9 (CMAKE_MINIMUM_REQUIRED): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/CMakeLists.txt:10 (CMAKE_POLICY): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/lua-5.2/CMakeLists.txt:5 (CMAKE_MINIMUM_REQUIRED): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/lua-5.2/CMakeLists.txt:6 (CMAKE_POLICY): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/luarocks/CMakeLists.txt:3 (CMAKE_MINIMUM_REQUIRED): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at exe/luajit-rocks/luarocks/CMakeLists.txt:4 (CMAKE_POLICY): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Warning (dev): Policy CMP0042 is not set: MACOSX_RPATH is enabled by default. Run "cmake --help-policy CMP0042" for policy details. Use the cmake_policy command to set the policy and suppress this warning.

MACOSX_RPATH is not specified for the following targets:

liblua

This warning is for project developers. Use -Wno-dev to suppress it.

error: /Library/Developer/CommandLineTools/usr/bin/install_name_tool: can't open file: /Users/laeh/torch/install/lib/libluajit.dylib (No such file or directory) Installing common Lua packages env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c src/lfs.c -o src/lfs.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -bundle -undefined dynamic_lookup -all_load -o lfs.so -L/Users/laeh/torch/install/lib src/lfs.o Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks luafilesystem 1.6.3-1 is now built and installed in /Users/laeh/torch/install/ (license: MIT/X11)

Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks penlight scm-1 is now built and installed in /Users/laeh/torch/install/ (license: MIT/X11)

env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c lua_cjson.c -o lua_cjson.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c strbuf.c -o strbuf.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c fpconv.c -o fpconv.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -bundle -undefined dynamic_lookup -all_load -o cjson.so -L/Users/laeh/torch/install/lib lua_cjson.o strbuf.o fpconv.o Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks lua-cjson 2.1devel-1 is now built and installed in /Users/laeh/torch/install/ (license: MIT)

Installing core Torch packages env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c test.c -o test.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -bundle -undefined dynamic_lookup -all_load -o ffi/libtest.so -L/Users/laeh/torch/install/lib test.o env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c call.c -o call.o -Idynasm env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c ctype.c -o ctype.o -Idynasm env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c ffi.c -o ffi.o -Idynasm ffi.c:1826:18: warning: assigning to 'char *' from 'uint8_t [8]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] data = misalignbuf.c; ^ ~~~~~~~~~~~~~ ffi.c:1858:18: warning: assigning to 'char *' from 'uint8_t [8]' converts between pointers to integer types where one is of the unique plain 'char' type and the other is not [-Wpointer-sign] data = misalignbuf.c; ^ ~~~~~~~~~~~~~ 2 warnings generated. env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c parser.c -o parser.o -Idynasm env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -bundle -undefined dynamic_lookup -all_load -o ffi.so -L/Users/laeh/torch/install/lib call.o ctype.o ffi.o parser.o Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks luaffi scm-1 is now built and installed in /Users/laeh/torch/install/ (license: BSD)

env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c src/autolink.c -o src/autolink.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c src/buffer.c -o src/buffer.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c src/markdown.c -o src/markdown.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c src/stack.c -o src/stack.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c html/houdini_href_e.c -o html/houdini_href_e.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c html/houdini_html_e.c -o html/houdini_html_e.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c html/html.c -o html/html.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -O2 -fPIC -I/Users/laeh/torch/install/include -c html/html_smartypants.c -o html/html_smartypants.o -Isrc/ -Ihtml/ env MACOSX_DEPLOYMENT_TARGET=10.4 gcc -bundle -undefined dynamic_lookup -all_load -o libsundown.so -L/Users/laeh/torch/install/lib src/autolink.o src/buffer.o src/markdown.o src/stack.o html/houdini_href_e.o html/houdini_html_e.o html/html.o html/html_smartypants.o Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks sundown scm-1 is now built and installed in /Users/laeh/torch/install/ (license: BSD)

Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks cwrap scm-1 is now built and installed in /Users/laeh/torch/install/ (license: BSD)

Warning: unmatched variable LUALIB cmake -E make_directory build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DLUALIB= -DLUA_INCDIR="/Users/laeh/torch/install/include" -DLUA_LIBDIR="/Users/laeh/torch/install/lib" -DLUADIR="/Users/laeh/torch/install/lib/luarocks/rocks/paths/scm-1/lua" -DLIBDIR="/Users/laeh/torch/install/lib/luarocks/rocks/paths/scm-1/lib" -DCMAKE_INSTALL_PREFIX="/Users/laeh/torch/install/lib/luarocks/rocks/paths/scm-1" && make

CMake Warning (dev) in CMakeLists.txt: No project() command is present. The top-level CMakeLists.txt file must contain a literal, direct call to the project() command. Add a line of code such as

project(ProjectName)

near the top of the file, but after cmake_minimum_required().

CMake is pretending there is a "project(Project)" command on the first line. This warning is for project developers. Use -Wno-dev to suppress it.

CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

-- Configuring done -- Generating done -- Build files have been written to: /Users/laeh/torch/pkg/paths/build Consolidate compiler generated dependencies of target paths [100%] Built target paths cd build && make install [100%] Built target paths Install the project... -- Install configuration: "Release" -- Installing: /Users/laeh/torch/install/lib/luarocks/rocks/paths/scm-1/lua/paths/init.lua -- Installing: /Users/laeh/torch/install/lib/luarocks/rocks/paths/scm-1/lib/libpaths.so Updating manifest for /Users/laeh/torch/install/lib/luarocks/rocks paths scm-1 is now built and installed in /Users/laeh/torch/install/ (license: BSD)

Warning: unmatched variable LUALIB cmake -E make_directory build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DLUA=/Users/laeh/torch/install/bin/lua -DLUALIB= -DLUA_BINDIR="/Users/laeh/torch/install/bin" -DLUA_INCDIR="/Users/laeh/torch/install/include" -DLUA_LIBDIR="/Users/laeh/torch/install/lib" -DLUADIR="/Users/laeh/torch/install/lib/luarocks/rocks/torch/scm-1/lua" -DLIBDIR="/Users/laeh/torch/install/lib/luarocks/rocks/torch/scm-1/lib" -DCMAKE_INSTALL_PREFIX="/Users/laeh/torch/install/lib/luarocks/rocks/torch/scm-1" && make -j$(getconf _NPROCESSORS_ONLN)

CMake Warning (dev) in CMakeLists.txt: No project() command is present. The top-level CMakeLists.txt file must contain a literal, direct call to the project() command. Add a line of code such as

project(ProjectName)

near the top of the file, but after cmake_minimum_required().

CMake is pretending there is a "project(Project)" command on the first line. This warning is for project developers. Use -Wno-dev to suppress it.

-- Could NOT find OpenMP_C (missing: OpenMP_C_FLAGS OpenMP_C_LIB_NAMES) -- Could NOT find OpenMP_CXX (missing: OpenMP_CXX_FLAGS OpenMP_CXX_LIB_NAMES) -- Could NOT find OpenMP (missing: OpenMP_C_FOUND OpenMP_CXX_FOUND) CMake Deprecation Warning at lib/TH/CMakeLists.txt:1 (cmake_minimum_required): Compatibility with CMake < 2.8.12 will be removed from a future version of CMake.

Update the VERSION argument value or use a ... suffix to tell CMake that the project does not need compatibility with older versions.

CMake Deprecation Warning at lib/TH/CMakeLists.txt:5 (CMAKE_POLICY): The OLD behavior for policy CMP0026 will be removed from a future version of CMake.

The cmake-policies(7) manual explains that the OLD behaviors of all policies are deprecated and that a policy should be set to OLD only under specific short-term circumstances. Projects should be ported to the NEW behavior and not rely on setting a policy to OLD.

-- Could NOT find OpenMP_C (missing: OpenMP_C_FLAGS OpenMP_C_LIB_NAMES) -- Could NOT find OpenMP_CXX (missing: OpenMP_CXX_FLAGS OpenMP_CXX_LIB_NAMES) -- Could NOT find OpenMP (missing: OpenMP_C_FOUND OpenMP_CXX_FOUND) CMake Error at lib/TH/cmake/FindARM.cmake:48 (STRING): STRING sub-command REGEX, mode REPLACE needs at least 6 arguments total to command. Call Stack (most recent call first): lib/TH/CMakeLists.txt:96 (FIND_PACKAGE)

-- Could not find hardware support for NEON on this machine. -- No OMAP3 processor on this machine. -- No OMAP4 processor on this machine. -- TH_SO_VERSION: 0 -- Atomics: using GCC intrinsics -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - iomp5 - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - iomp5 - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - guide - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - guide - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_sequential - mkl_core - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_sequential - mkl_core - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_sequential - mkl_core - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_sequential - mkl_core - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_sequential - mkl_core - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_sequential - mkl_core - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - iomp5 - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - iomp5 - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - guide - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - guide - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl_intel_lp64 - mkl_intel_thread - mkl_core - pthread - m] -- Library mkl_intel_lp64: not found -- Checking for [mkl_intel - mkl_intel_thread - mkl_core - pthread - m] -- Library mkl_intel: not found -- Checking for [mkl - guide - pthread - m] -- Library mkl: not found -- MKL library not found -- Checking for [openblas] -- Library openblas: BLAS_openblas_LIBRARY-NOTFOUND -- Checking for [openblas - pthread] -- Library openblas: BLAS_openblas_LIBRARY-NOTFOUND -- Checking for [goto2 - gfortran] -- Library goto2: BLAS_goto2_LIBRARY-NOTFOUND -- Checking for [goto2 - gfortran - pthread] -- Library goto2: BLAS_goto2_LIBRARY-NOTFOUND -- Checking for [acml - gfortran] -- Library acml: BLAS_acml_LIBRARY-NOTFOUND -- Checking for [Accelerate] -- Library Accelerate: /Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk/System/Library/Frameworks/Accelerate.framework -- This BLAS uses the F2C return conventions -- Found a library with BLAS API (accelerate). -- Found a library with LAPACK API. (accelerate) CMake Deprecation Warning at lib/luaT/CMakeLists.txt:3 (CMAKE_POLICY): The OLD behavior for policy CMP0026 will be removed from a future version of CMake.

The cmake-policies(7) manual explains that the OLD behaviors of all policies are deprecated and that a policy should be set to OLD only under specific short-term circumstances. Projects should be ported to the NEW behavior and not rely on setting a policy to OLD.

-- Configuring incomplete, errors occurred! See also "/Users/laeh/torch/pkg/torch/build/CMakeFiles/CMakeOutput.log". See also "/Users/laeh/torch/pkg/torch/build/CMakeFiles/CMakeError.log".

Error: Build error: Failed building. `

I try to install torch7 in raspberry pi but it didn't work and i don't know how to do it.

[email protected]:~/torch$ TORCH_LUA_VERSION=LUA52 ./install.sh
Prefix set to /home/pi/torch/install
Installing Lua version: LUA52
CMake Warning (dev) in CMakeLists.txt:
  No project() command is present.  The top-level CMakeLists.txt file must
  contain a literal, direct call to the project() command.  Add a line of
  code such as

    project(ProjectName)

  near the top of the file, but after cmake_minimum_required().

  CMake is pretending there is a "project(Project)" command on the first
  line.
This warning is for project developers.  Use -Wno-dev to suppress it.

this is my lua version [email protected]:~/torch$ lua Lua 5.2.4 Copyright (C) 1994-2015 Lua.org, PUC-Rio

this is my cmake version And there is some problem with 3.16 so i try with cmake version 3.10 but it didn't work too. [email protected]:~/torch$ cmake --version cmake version 3.16.3

I followed the steps provided here to install the lua torch. After installation when I tried installing new package it gives me following error.

`Installing https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/protobuf-1.1.2-0.rockspec... Using https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/protobuf-1.1.2-0.rockspec... switching to 'build' mode Cloning into 'protobuf-lua'... fatal: Could not read from remote repository.

Please make sure you have the correct access rights and the repository exists.

Error: Failed cloning git repository.`

My system is Ubuntu 20.04 Please help me to solve the error.