openblas

Windows编译OpenBLAS

Deadly 提交于 2020-05-04 09:39:42
在尝试用 LazyNet 时,由于原作者提供的OpenCV和OpenBLAS版本和我的环境不一样,考虑自行配置依赖。 OpenCV源码编译的文章很多,这里主要说一下OpenBLAS的编译。 cblas_sgemm crash 基于VS2017的MSVC编译器,编译安装openblas develop分支最新版,发现 LazyNet 代码有crash(access violation),而在Linux(ubuntu16.04,G++/Clang++-8)则运行正常。剥离出来的复现问题的最小化代码见下方,解决办法是 用clang-cl(Windows下和MSVC兼容的clang编译器)重新编译OpenBLAS , 讨论帖在此 。 #include <stdio.h> extern "C" { #include <cblas.h> } int main() { printf("OpenBLAS config info:\n%s\n", openblas_get_config()); #if 1 // will cause crash on VS2017 x64 with OpenBLAS latest const int M = 16; const int N = 676; const int K = 27; #else // won't crash const int M = 4;

utuntu16.04安装caffe+Matlab2017a+opencv3.1+CUDA8.0+cudnn6.0

邮差的信 提交于 2020-01-23 09:27:05
上午把tensorflow安装好了,下午和晚上装caffe的确很费劲。 默认CUDA,cuDNN可以用了 caffe官方安装教程 有些安装顺序自己也不清楚,简直就是碰运气 1. 安装之前依赖项 General dependencies sudo apt-get install libprotobuf-dev libleveldb-dev libsnappy-dev libopencv-dev libhdf5-serial-dev protobuf-compiler sudo apt-get install --no-install-recommends libboost-all-dev 安装matlab见后面: 为什么需要安装Matlab? caffe有Matlab的接口,因此如果需要使用Matlab调用caffe,进行编程,就需要安装Matlab。如果你觉得使用C或Python编程比较难,就请安装Matlab。当然如果不需要,并且后面不会编译caffe生成Matlab的接口,就不需要安装Matlab了。这个纯粹根据个人需求来定。 为什么需要安装OpenCV? caffe是用来做深度学习的,深度学习的一大应用对象就是图像和视频。而OpenCV是目前最火的开源计算机视觉库,非常多的项目多用到了OpenCV,当然caffe也依赖OpenCV。所以,需要安装OpenCV

How to make openBLAS work with openMP?

*爱你&永不变心* 提交于 2019-12-25 14:25:28
问题 I got tons of warning from openBLAS like OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the

How to make openBLAS work with openMP?

你。 提交于 2019-12-25 14:25:08
问题 I got tons of warning from openBLAS like OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the library with USE_OPENMP=1 option. OpenBLAS Warning : Detect OpenMP Loop and this application may hang. Please rebuild the

Ubuntu Linux 15.04配置安装Caffe

痴心易碎 提交于 2019-12-24 11:54:48
  最近开始尝试Deep Learning的东西,师兄推荐了Caffe,开始尝试如何配置Caffe运行所需环境。   OK,开始动手。   找到Caffe官网的安装指南:http://caffe.berkeleyvision.org/installation.html,着实被安装的预备条件吓了一下,好大一坨,没办法,安装需求,硬着头皮也要上啊,一项一项开始走起~(另外,这篇http://blog.csdn.net/yuxiangyunei/article/details/50165519博文也给出了一些安装步骤,我这里基本都是自己编译的包,并不是同该博文中的使用Ubuntu软件库进行的安装配置,大家可以参考一下这位大牛的步骤。) 1、CUDA和BLAS安装   CUDA安装包和驱动的下载去NVIDIA官网下就好,Caffe官方推荐的是最新的CUDA 7.0及以上版本,所以,追了一把潮流,来了一个7.5版本的,驱动来个Linux环境下的闭源驱动,如果已经安装Linux下Additional Driver推荐的驱动的话,需要卸载重新安装,这个通过系统工具安装的驱动是没办法安装从官网下载的CUDA工具包的(记得之前是这个样子),这里也没有选择通过apt-get安装的CUDA版本,一步一步走起,感觉能更好的理解整个安装过程,而且,也知道自己安装的东西所在目录吧。   a) CUDA 7

Numpy dot operation is not using all cpu cores

末鹿安然 提交于 2019-12-23 19:13:14
问题 I am doing numpy dot product on two matrices (Let us assume a and b are two matrices). When the shape of a is (10000, 10000) and shape of b is (1, 10000) then the numpy.dot(a, b.T) is using all the CPU cores. But when the shape of a is (10000, 10000) and shape of b is (2, 10000) then the numpy.dot(a, b.T) is not using all the CPU cores (Only using one). This is happening when the row size of b is from 2 to 15 (i.e from (2, 10000) to (15, 10000)). Example: import numpy as np a = np.random.rand

CAFFE安装 CentOS无GPU

房东的猫 提交于 2019-12-23 02:19:57
前记 由于是在一台用了很久的机器上安装caffe,过程比较复杂,网上说再干净的机器上装比较简单。如果能有干净的机器,就不用再过这么多坑了,希望大家好运!介绍这里就不说了,直接进入正题: Caffe 主页 http://caffe.berkeleyvision.org/ github主页 https://github.com/BVLC/caffe 机器配置: [root@cdh-nn-182 build]# lsb_release -a LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch Distributor ID: RedHatEnterpriseServer Description: Red Hat Enterprise Linux Server release 6.3 (Santiago) Release: 6.3gcc 版本 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC)Python 2.7.10 python已安装numpy,没有GPU Prerequisites CUDA is

R and nvblas.dynlib (on a mac)

南楼画角 提交于 2019-12-22 10:38:23
问题 I have R on my mac installed via CRAN. I also have openblas installed via homebrew. I can switch between BLAS implementations as follows: Reference blas (netlib I think): ln -sf /Library/Frameworks/R.framework/Resources/lib/libRblas.0.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas.dylib vecLib (Apple's BLAS): ln -sf /System/Library/Frameworks/Accelerate.framework/Frameworks/vecLib.framework/Versions/Current/libBLAS.dylib /Library/Frameworks/R.framework/Resources/lib/libRblas

lapack/blas/openblas proper installation from source - replace system libraries with new ones

非 Y 不嫁゛ 提交于 2019-12-22 07:59:57
问题 I wanted to install BLAS, CBLAS, LAPACK and OpenBLAS libraries from source using available packages you can download here openblas and lapack, blas/cblas. Firstly I removed my system blas/cblas and lapack libraries, but unfortunately atlas library couldn't be uninstalled (I can either have both blas and lapack or atlas - can't remove them all). I didn't bother and started compiling downloaded libraries cause I thought that after installation I would be able to remove atlas. Building process

Why can R be linked to a shared BLAS later even if it was built with `--with-blas = lblas`?

别等时光非礼了梦想. 提交于 2019-12-19 08:17:08
问题 The BLAS section in R installation and administration manual says that when R is built from source , with configuration parameter --without-blas , it will build Netlib's reference BLAS into a standalone shared library at R_HOME/lib/libRblas.so , along side the standard R shared library R_HOME/lib/libR.so . This makes it easier for user to switch and benchmark different tuned BLAS in R environment. The guide suggests that researcher might use symbolic link to libRblas.so to achieve this, and