Windows use mkl static lib (take 2) (#1798)

resubmit #1790 with fix PR #1797.

From pytorch issue: pytorch/pytorch#124009 I found libtorch seems use shared mkl lib and missing some mkl dll files.
1. Currently pytorch Linux already use static mkl lib.
2. Windows can also support static mkl lib, I have validated as pytorch/pytorch#116946

Tested in https://github.com/pytorch/pytorch/actions/runs/8836875904/job/24264643410

Author: xuhancn

windows/build_pytorch.bat

@@ -63,11 +63,6 @@ echo "Failed to create conda env"
 exit /B 1
 :done
 
-
-:: Install MKL
-rmdir /s /q mkl
-del mkl_2020.2.254.7z
-
 :: Download MAGMA Files on CUDA builds
 set MAGMA_VERSION=2.5.4
 
@@ -122,7 +117,7 @@ for %%v in (%DESIRED_PYTHON_PREFIX%) do (
     ) else (
         set "PATH=%CONDA_HOME%\envs\%%v;%CONDA_HOME%\envs\%%v\scripts;%CONDA_HOME%\envs\%%v\Library\bin;%ORIG_PATH%"
     )
-    pip install ninja mkl-include==2021.4.0 mkl-devel==2021.4.0
+    pip install ninja
     @setlocal
     :: Set Flags
     if not "%CUDA_VERSION%"=="cpu" (

windows/condaenv.bat

@@ -9,11 +9,11 @@ FOR %%v IN (%DESIRED_PYTHON%) DO (
     set PYTHON_VERSION_STR=%%v
     set PYTHON_VERSION_STR=!PYTHON_VERSION_STR:.=!
     conda remove -n py!PYTHON_VERSION_STR! --all -y || rmdir %CONDA_HOME%\envs\py!PYTHON_VERSION_STR! /s
-    if "%%v" == "3.8" call conda create -n py!PYTHON_VERSION_STR! -y -q numpy=1.11 "mkl=2020.2" pyyaml boto3 cmake ninja typing_extensions python=%%v
-    if "%%v" == "3.9" call conda create -n py!PYTHON_VERSION_STR! -y -q numpy>=1.11 "mkl=2020.2" pyyaml boto3 cmake ninja typing_extensions python=%%v
-    if "%%v" == "3.10" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.21.3 "mkl=2020.2" intel-openmp=2023.2.0 pyyaml boto3 "cmake=3.19.6" ninja typing_extensions python=%%v
-    if "%%v" == "3.11" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.23.4 "mkl=2020.2" intel-openmp=2023.2.0 pyyaml boto3 "cmake=3.19.6" ninja typing_extensions python=%%v
-    if "%%v" == "3.12" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.26.0 "mkl=2023.1" intel-openmp=2023.2.0 pyyaml boto3 "cmake=3.19.6" ninja typing_extensions python=%%v
+    if "%%v" == "3.8" call conda create -n py!PYTHON_VERSION_STR! -y -q numpy=1.11 intel::mkl-static intel::mkl-include pyyaml boto3 cmake ninja typing_extensions python=%%v
+    if "%%v" == "3.9" call conda create -n py!PYTHON_VERSION_STR! -y -q numpy>=1.11 intel::mkl-static intel::mkl-include pyyaml boto3 cmake ninja typing_extensions python=%%v
+    if "%%v" == "3.10" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.21.3 intel::mkl-static intel::mkl-include pyyaml boto3 cmake ninja typing_extensions python=%%v
+    if "%%v" == "3.11" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.23.4 intel::mkl-static intel::mkl-include pyyaml boto3 cmake ninja typing_extensions python=%%v
+    if "%%v" == "3.12" call conda create -n py!PYTHON_VERSION_STR! -y -q -c=conda-forge numpy=1.26.0 intel::mkl-static intel::mkl-include pyyaml boto3 cmake ninja typing_extensions python=%%v
 )
 endlocal
 

windows/internal/check_deps.bat

@@ -65,7 +65,7 @@ if  %PYVER% LSS 35 (
     echo Warning: PyTorch for Python 2 under Windows is experimental.
     echo Python x64 3.5 or up is recommended to compile PyTorch on Windows
     echo Maybe you can create a virual environment if you have conda installed:
-    echo ^> conda create -n test python=3.6 pyyaml mkl numpy
+    echo ^> conda create -n test python=3.6 pyyaml numpy
     echo ^> activate test
 )
 

windows/internal/copy.bat

@@ -11,10 +11,7 @@ copy "%CUDA_PATH%\extras\CUPTI\lib64\cupti64_*.dll*" pytorch\torch\lib
 
 copy "C:\Program Files\NVIDIA Corporation\NvToolsExt\bin\x64\nvToolsExt64_1.dll*" pytorch\torch\lib
 copy "%CONDA_LIB_PATH%\libiomp*5md.dll" pytorch\torch\lib
-IF "%PACKAGE_TYPE%"=="libtorch" (
-    copy "%CONDA_LIB_PATH%\mkl_intel_thread.1.dll" pytorch\torch\lib
-    copy "%CONDA_LIB_PATH%\mkl_core.1.dll" pytorch\torch\lib
-)
+
 :: Should be set in build_pytorch.bat
 copy "%libuv_ROOT%\bin\uv.dll" pytorch\torch\lib
 

windows/internal/copy_cpu.bat

@@ -1,8 +1,3 @@
 copy "%CONDA_LIB_PATH%\libiomp*5md.dll" pytorch\torch\lib
 :: Should be set in build_pytorch.bat
-copy "%libuv_ROOT%\bin\uv.dll" pytorch\torch\lib
-
-IF "%PACKAGE_TYPE%"=="libtorch" (
-    copy "%CONDA_LIB_PATH%\mkl_intel_thread.1.dll" pytorch\torch\lib
-    copy "%CONDA_LIB_PATH%\mkl_core.1.dll" pytorch\torch\lib
-)
+copy "%libuv_ROOT%\bin\uv.dll" pytorch\torch\lib

windows/internal/static_lib_test.bat

@@ -70,11 +70,6 @@ echo "install and test libtorch"
 pip install cmake
 echo "installing cmake"
 
-curl https://s3.amazonaws.com/ossci-windows/mkl_2020.2.254.7z -k -O
-7z x -aoa mkl_2020.2.254.7z -omkl
-set LIB=%CD%\mkl\lib;%LIB%
-
-
 if "%VC_YEAR%" == "2019" powershell internal\vs2019_install.ps1
 if "%VC_YEAR%" == "2022" powershell internal\vs2022_install.ps1