Win10上配置 Lapack

 

前置條件：已安裝了 VS2012，IVF2013。

 

需要安裝 lapack 等庫文件來實現科學計算。

實現步驟：Lapack 庫需要使用 Cmake，因此需要先安裝好 Cmake！

 

一、Cmake 的安裝

過程可參考這里。

To build LAPACK libraries under Windows?

You will need to install CMAKE on your machine and please refer to the build section .

Cmake 版本（cmake-3.18.4-win64-x64.msi），可以從這里下載。

 

二、Lapack 的安裝

（注：Lapack 庫在 Win10下的安裝和使用樣例，可以參見這篇博客 https://www.cnblogs.com/panscience/p/4966404.html）

 lapack-3.9.0.tar.gz 的下載地址位於這里，可以參考 Lapack 網站 上的介紹，即，“LAPACK for Windows”一節的介紹：

LAPACK for Windows
LAPACK is built under Windows using Cmake the cross-platform, open-source build system. The new build system was developed in collaboration with Kitware Inc.

A dedicated website (http://icl.cs.utk.edu/lapack-for-windows/lapack) is available for Windows users.

You will find information about your configuration need.

 

安裝和樣例調試的所有步驟，見這里，即，“Easy Windows Build”一節的介紹：

Easy Windows Build

Build Instructions for LAPACK 3.9.0 for Windows with Visual Studio

Requirements: Visual Studio, Intel C and Fortran Compilers, CMAKE 2.8.12

1. Download the lapack.tgz from the netlib website and unzip.
2. Download CMAKE and install it on your machine.
3. Open CMAKE
   • Point to your lapack-3.9.0 folder as the source code folder
   • Point to a new folder where you want the build to be (not the same is better)
   • Click configure, check the install path if you want to have the libraries and includes in a particular location.
   • Choose Visual Studio Solution.
   • You will have to click "Specify native compilers" and indicate the path to the ifort compiler. On my machine, it is "C:/Program Files (x86)/Intel/Compiler/11.1/048/bin/ia32/icl.exe".
   • You may have to click again configure until everything becomes white
   • Click generate, that will create the Visual Studio Solution and you are done.
   • Close CMAKE
4. Look in your "build" folder, you have your LAPACK Visual Studio Solution, just open it.
5. Build the "ALL_BUILD" project, it will build the solution and create the libraries
6. Build the "INSTALL". This will put the libraries and include in your install folder.
7. Build the "RUN_TESTS". The BLAS and LAPACK testings will be run.

 

注意事項：

需要注意的是，下載的 lapack 文件夾中，需要在 CMake 開始前，執行兩步修改：

（1）復制 make.inc.example 文件，並重命名為 make.inc；

（2）Lapack 需要用到 Blas 庫，因此系統有無 Blas 庫對應着兩種不同的做法。

      如果系統已經有了 Blas 庫，或者說你想要用自己的 Blas 庫，你需要修改 make.inc 里的 USEXBLAS 、 XBLASLIB 和 XBLASLIB 三個變量，修改完直接Make就行了。

      如果系統沒有 Blas 庫，Lapack 源碼里自己帶了一個，可以直接用。那么保持 make.inc 里的設置不變，打開 Makefile，把 Blas 庫加到編譯目標里，就是 lib 參數編程： 

# lib: lapacklib tmglib # 修改前

lib: blaslib lapacklib tmglib # 修改后