"/usr/bin/ld: cannot find -lcblas" #1442

tengpeng · 2016-02-09T23:21:44Z

I am compiling the packages on CentOS 7, but get error

"/usr/bin/ld: cannot find -lcblas"

What I tried:

Installed atlas packages
Link the libraries

# the additional link flags you want to add
ADD_LDFLAGS = -L/usr/lib64/atlas -L/usr/include

# the additional compile flags you want to add
ADD_CFLAGS = -L/usr/lib64/atlas -L/usr/include

The text was updated successfully, but these errors were encountered:

tengpeng · 2016-02-09T23:22:04Z

locate blas
/usr/include/cblas.h
/usr/lib64/libreoffice/share/gallery/htmlexpo/cublast.gif
/usr/lib64/libreoffice/share/gallery/htmlexpo/cublast_.gif
/usr/lib64/pkgconfig/cublas-7.5.pc
/usr/local/cuda-7.5/doc/html/cublas
/usr/local/cuda-7.5/doc/html/nvblas
/usr/local/cuda-7.5/doc/html/cublas/graphics
/usr/local/cuda-7.5/doc/html/cublas/index.html
/usr/local/cuda-7.5/doc/html/cublas/graphics/cublasmg_gemm.jpg
/usr/local/cuda-7.5/doc/html/nvblas/index.html
/usr/local/cuda-7.5/doc/man/man7/libcublas.7
/usr/local/cuda-7.5/doc/man/man7/libcublas.so.7
/usr/local/cuda-7.5/targets/x86_64-linux/include/cublas.h
/usr/local/cuda-7.5/targets/x86_64-linux/include/cublasXt.h
/usr/local/cuda-7.5/targets/x86_64-linux/include/cublas_api.h
/usr/local/cuda-7.5/targets/x86_64-linux/include/cublas_v2.h
/usr/local/cuda-7.5/targets/x86_64-linux/include/nvblas.h
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so.7.5
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so.7.5.18
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas_device.a
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas_static.a
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libnvblas.so
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libnvblas.so.7.5
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libnvblas.so.7.5.18
/usr/local/cuda-7.5/targets/x86_64-linux/lib/stubs/libcublas.so
/usr/share/doc/atlas-devel-3.10.1/doc/cblas.pdf
/usr/share/doc/atlas-devel-3.10.1/doc/cblasqref.pdf
/usr/share/doc/atlas-devel-3.10.1/doc/f77blasqref.pdf
/var/cuda-repo-7-5-local/cuda-cublas-7-5-7.5-18.x86_64.rpm
/var/cuda-repo-7-5-local/cuda-cublas-dev-7-5-7.5-18.x86_64.rpm
[pt@MiWiFi-R2D-srv mxnet]$ cat config.mk

tengpeng · 2016-02-09T23:22:32Z

locate atlas | grep lib
/usr/lib/modules/3.10.0-327.4.5.el7.x86_64/kernel/drivers/input/misc/atlas_btns.ko
/usr/lib/modules/3.10.0-327.el7.x86_64/kernel/drivers/input/misc/atlas_btns.ko
/usr/lib64/atlas
/usr/lib64/atlas/libsatlas.so
/usr/lib64/atlas/libsatlas.so.3
/usr/lib64/atlas/libsatlas.so.3.10
/usr/lib64/atlas/libtatlas.so
/usr/lib64/atlas/libtatlas.so.3
/usr/lib64/atlas/libtatlas.so.3.10
/var/lib/alternatives/atlas-inc

piiswrong · 2016-02-09T23:36:01Z

atlas should include a libcblas.so. Locate it and add its path to flags. If you can't find it, your atlas is probably not correctly installed.

tengpeng · 2016-02-09T23:53:51Z

I tried reinstall altas packages, but the error persists.

Is it libcblas.so or libcUblas.so ?

[pt@MiWiFi-R2D-srv mxnet]$ locate libcublas.so
/usr/local/cuda-7.5/doc/man/man7/libcublas.so.7
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so.7.5
/usr/local/cuda-7.5/targets/x86_64-linux/lib/libcublas.so.7.5.18
/usr/local/cuda-7.5/targets/x86_64-linux/lib/stubs/libcublas.so
[pt@MiWiFi-R2D-srv mxnet]$ locate libcblas.so
[pt@MiWiFi-R2D-srv mxnet]$

I tried search libcblas.so on repo, but didn't find it.

sudo yum search libcblas.so
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: chicago.gaminghost.co
 * epel: mirror.steadfast.net
 * extras: cosmos.illinois.edu
 * remi-safe: mirrors.mediatemple.net
 * rpmforge: mirror.team-cymru.org
 * updates: centos.mirrors.tds.net
 * webtatic: us-east.repo.webtatic.com
Warning: No matches found for: libcblas.so
No matches found

I understand the name of libcblas.so may be different in centOS. However, given that I have reinstalled altas, I am confused why I cannot get it passed.

piiswrong · 2016-02-10T00:30:14Z

Here is my output of locate libcblas:

locate libcblas
/usr/lib/libcblas.a
/usr/lib/libcblas.so
/usr/lib/libcblas.so.3
/usr/lib/libcblas.so.3gf
/usr/lib/atlas-base/libcblas.a
/usr/lib/atlas-base/libcblas.so
/usr/lib/atlas-base/libcblas.so.3
/usr/lib/atlas-base/libcblas.so.3.0

Seems like an issue with atlas on different platforms. I suggest you look into atlas's documents or switch to other blas libraries, like Openblas.

thirdwing · 2016-02-10T02:29:02Z

On CentOS/Fedora/Red Hat, please change -lcblas to -lsatlas in https://github.com/dmlc/mshadow/blob/master/make/mshadow.mk#L56

Maybe this should be added into documents.

piiswrong · 2016-02-10T02:31:47Z

@thirdwing Maybe we can do auto detect. uname -a gives distro name.

tengpeng · 2016-02-10T04:42:00Z

Solved. Thanks! I am crying seeing the terminal running like crazy.

tengpeng · 2016-02-10T04:42:40Z

One more question: how do I find out the library name for X OS, if only library name for Y os is given?

thirdwing · 2016-02-10T14:51:39Z

I don't think this is a general answer for this.

yeomanbnu · 2016-06-24T05:09:15Z

@tengpeng ,can you please post your solution here. I ran into the same problem and tried to replace to "ADD_LDFLAGS +=-lsatlas" but still got "cannot find -lcblas" error

tengpeng · 2016-07-10T05:11:02Z

Please refer to Eric's answer which help me solve the problem.

atlas should include a libcblas.so. Locate it and add its path to flags. If you can't find it, your atlas is probably not correctly installed.

On Fri, Jun 24, 2016 at 12:09 AM, yeoman notifications@github.com wrote:

@tengpeng https://github.com/tengpeng ,can you please post your
solution here. I ran into the same problem and tried to replace to
"ADD_LDFLAGS +=-lsatlas" but still got "cannot find -lcblas" error

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pengpaiSH · 2016-08-22T07:05:06Z

Hi, all. In order to help others who may run into this problem. I fix the error by creating a soft link as below:
cd /usr/lib64
ln -s libcblas.so.3 libcblas.so

bigstone09 · 2016-10-09T02:42:17Z

@tengpeng I'm tring to install mxnet on CentOS7, but I run into the same error with "/usr/bin/ld: cannot find -lcblas" , could you post a step-by-step tutorial to share your experience in installing mxnet on CentOS?

tengpeng · 2016-10-10T18:56:29Z

I don't have CentOS access anymore. But I am sure this problem can be
solved by 1. try everything on this issue. 2. search installation guides on
lcblas 3. look at caffe library's installation guide.

On Sat, Oct 8, 2016 at 9:42 PM, bigstone09 notifications@github.com wrote:

@tengpeng https://github.com/tengpeng I'm tring to install mxnet on
CentOS7, but I run into the same error with "/usr/bin/ld: cannot find
-lcblas" , could you post a step-by-step tutorial to share your experience
in installing mxnet on CentOS?

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liuguiyangnwpu · 2016-11-01T08:06:30Z

OS : Centos7.2
Software: CaffeOnSpark
if you want to use atlas, Please modified the caffe-public/Makefile, cblas -> satlas , atlas -> tatlas ,
and you also modified the caffe-distribute/Makefile , cblas -> satlas, atlas -> tatlas.
run this comand

make clean
make build

will fix this bug !

shadowleaves · 2016-11-20T21:10:22Z

Thanks for the useful information above. adding "-L/usr/lib64/atlas" to ADD_LDFLAGS in config.mk and changing -lcblas to -lsatlas in mxnet/mshadow/make/mshadow.mk will fix the ld error on Centos 7 with ATLAS. I can also confirm that the ATLAS on centos 7 does not ship with libcblas.so. @tengpeng @thirdwing

Beastmaster · 2017-01-16T02:57:12Z

I solved this problem by replacing cblas with satlas. Here is solution:

open Makefile in caffe source dir and locate "cblas"
Replace "cblas" with "satlas"

Note: My system is fedora 23

hschu · 2017-03-31T05:38:46Z

Here's my solution. (CentOS 7)

Edit Makefile.config (line 54-55)
BLAS_INCLUDE := /usr/include/atlas
BLAS_LIB := /usr/lib64/atlas
Change Makefile (line 384)
LIBRARIES += cblas atlas
==>
LIBRARIES += satlas tatlas

ArmageddonKnight · 2020-07-24T02:36:46Z

For me, I installed extra dependency to solve this:

sudo apt-get install libatlas-base-dev

thirdwing closed this as completed Feb 10, 2016

HerefordGuy mentioned this issue May 5, 2016

Installation of ziphmm birc-aeh/coalhmm#4

Open

airalcorn2 mentioned this issue Sep 28, 2016

Compile with "-lsatlas" instead of "-lcblas" on Red Hat family distributions. danielfrg/tsne#18

Merged

tb0hdan mentioned this issue Feb 6, 2017

Support for RHEL-bases systems Kitt-AI/snowboy#116

Open

sampathchanda mentioned this issue Feb 20, 2017

Request for install script for CentOS #5067

Closed

miroi mentioned this issue May 23, 2017

CBLAS library not found ... which package ? dev-cafe/autocmake#201

Open

milandesai mentioned this issue Jul 20, 2017

Update make configuration to link with satlas instead of cblas on CentOS dmlc/mshadow#272

Merged

chrchang mentioned this issue Nov 13, 2019

installing from source; /usr/bin/ld: cannot find -lcblas chrchang/plink-ng#131

Closed

VitaminBrad mentioned this issue Jul 30, 2020

"Cannot find -lcblas" on Fedora machine AMICI-dev/AMICI#1174

Closed

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"/usr/bin/ld: cannot find -lcblas" #1442

"/usr/bin/ld: cannot find -lcblas" #1442

tengpeng commented Feb 9, 2016

tengpeng commented Feb 9, 2016

tengpeng commented Feb 9, 2016

piiswrong commented Feb 9, 2016

tengpeng commented Feb 9, 2016

piiswrong commented Feb 10, 2016

thirdwing commented Feb 10, 2016

piiswrong commented Feb 10, 2016

tengpeng commented Feb 10, 2016

tengpeng commented Feb 10, 2016

thirdwing commented Feb 10, 2016

yeomanbnu commented Jun 24, 2016

tengpeng commented Jul 10, 2016

pengpaiSH commented Aug 22, 2016

bigstone09 commented Oct 9, 2016

tengpeng commented Oct 10, 2016

liuguiyangnwpu commented Nov 1, 2016 •

edited

shadowleaves commented Nov 20, 2016

Beastmaster commented Jan 16, 2017 •

edited

hschu commented Mar 31, 2017

ArmageddonKnight commented Jul 24, 2020

"/usr/bin/ld: cannot find -lcblas" #1442

"/usr/bin/ld: cannot find -lcblas" #1442

Comments

tengpeng commented Feb 9, 2016

tengpeng commented Feb 9, 2016

tengpeng commented Feb 9, 2016

piiswrong commented Feb 9, 2016

tengpeng commented Feb 9, 2016

piiswrong commented Feb 10, 2016

thirdwing commented Feb 10, 2016

piiswrong commented Feb 10, 2016

tengpeng commented Feb 10, 2016

tengpeng commented Feb 10, 2016

thirdwing commented Feb 10, 2016

yeomanbnu commented Jun 24, 2016

tengpeng commented Jul 10, 2016

pengpaiSH commented Aug 22, 2016

bigstone09 commented Oct 9, 2016

tengpeng commented Oct 10, 2016

liuguiyangnwpu commented Nov 1, 2016 • edited

shadowleaves commented Nov 20, 2016

Beastmaster commented Jan 16, 2017 • edited

hschu commented Mar 31, 2017

ArmageddonKnight commented Jul 24, 2020

liuguiyangnwpu commented Nov 1, 2016 •

edited

Beastmaster commented Jan 16, 2017 •

edited