我的 mac 上安装了 RCRAN http://cran.r-project.org/。我还通过安装了 openblashomebrew https://github.com/Homebrew/homebrew-science/blob/master/openblas.rb。我可以在 BLAS 实现之间切换，如下所示：
参考blas（我认为是netlib）：
ln -sf /Library/Frameworks/R.framework/Resources/lib/libRblas.0.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
vecLib（Apple 的 BLAS）：
ln -sf /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Versions/Current/libBLAS.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
openblas（通过自制程序提供）：
brew link openblas --force
ln -sf /usr/local/lib/libopenblas.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
在这 3 个选项中，openblas 似乎是最快的选项（尽管 vecLib 紧随其后）。
不过，我想尝试更多的力量：
I 安装了 NVIDIA 的 CUDA 6.5 https://developer.nvidia.com/cuda-downloads。这会下载一堆文件到/Developer/NVIDIA/并将其中一些链接到/usr/local/cuda。我将 cuda 环境变量设置为~/.profile:
export PATH="/usr/local/cuda/bin:$PATH"
export LD_LIBRARY_PATH="/usr/local/cuda/lib:$LD_LIBRARY_PATH"
export CUDA_ROOT="/usr/local/cuda/bin"
export CUDA_HOME="/usr/local/cuda"
export NVBLAS_CONFIG_FILE="/Users/me/nvblas.conf"
然后我创建了一个包含以下条目的“/Users/me/nvblas.conf”：
NVBLAS_CPU_BLAS_LIB /usr/local/lib/libopenblas.dylib
NVBLAS_GPU_LIST ALL0
NVBLAS_TILE_DIM 2048
NVBLAS_AUTOPIN_MEM_ENABLED
从理论上讲，这应该指出nvblas.dylib回到libopenblas.dylib对于不包含在 BLAS 函数中nvblas.dylib.
到目前为止，一切都很好。下一步是将 R 链接到nvblas.dylib:
ln -sf /usr/local/cuda/lib/libnvblas.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
然而，当我启动R时，似乎libRlapack.dylib无法找到所需的所有 BLAS 函数：
me:~ me$ R
[NVBLAS] Using devices :0
[NVBLAS] Config parsed
R version 3.1.2 (2014-10-31) -- "Pumpkin Helmet"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: x86_64-apple-darwin13.4.0 (64-bit)
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
Natural language support but running in an English locale
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object '/Library/Frameworks/R.framework/Versions/3.1/Resources/library/stats/libs/stats.so':
dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/stats/libs/stats.so, 6): Symbol not found: _dasum_
Referenced from: /Library/Frameworks/R.framework/Versions/3.1/Resources/lib/libRlapack.dylib
Expected in: /Library/Frameworks/R.framework/Versions/3.1/Resources/lib/libRblas.dylib
in /Library/Frameworks/R.framework/Versions/3.1/Resources/lib/libRlapack.dylib
During startup - Warning message:
package ‘stats’ in options("defaultPackages") was not found
openblas 本身工作得很好，并提供了 R 正在寻找的所有功能，所以我认为错误是libnvblas.dylib没有正确回退到libopenblas.dylib.
无论 CPU BLAS I 指向什么，都会发生这种情况libnvblas.dylib在（netlib、vecLib、openblas）。谁能帮我解决这个错误？还有什么我需要添加到我的路径或链接中才能获得libnvblas.dylib可以在 Mac 上正确使用 R 吗？
相关错误大概是：
Symbol not found: _dasum_
Referenced from: /Library/Frameworks/R.framework/Versions/3.1/Resources/lib/libRlapack.dylib
Expected in: /Library/Frameworks/R.framework/Versions/3.1/Resources/lib/libRblas.dylib
在我看来 nvblas 没有转发_dasum_到 openblas。
/edit:
otool -L /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib
Yields:
/Library/Frameworks/R.framework/Resources/lib/libRblas.dylib:
@rpath/libnvblas.6.5.dylib (compatibility version 0.0.0, current version 6.5.14)
@rpath/libcublas.6.5.dylib (compatibility version 0.0.0, current version 6.5.14)
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 635.21.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)
