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jnbraun / bcnn

A minimalist Deep Learning framework for embedded Computer Vision
MIT License
46 stars 9 forks source link

On make I am getting this cblas error. #4

Closed assaad closed 5 years ago

assaad commented 5 years ago

[ 88%] Linking C executable bin/bcnn-cl /usr/bin/ld: lib/libbcnn.a(bcnn_conv_layer.c.o): in function bcnn_forward_conv_layer_cpu': bcnn_conv_layer.c:(.text+0x234f): undefined reference tocblas_sgemm' /usr/bin/ld: lib/libbcnn.a(bcnn_conv_layer.c.o): in function bcnn_backward_conv_layer_cpu': bcnn_conv_layer.c:(.text+0x26f7): undefined reference tocblas_sgemm' /usr/bin/ld: bcnn_conv_layer.c:(.text+0x27e1): undefined reference to cblas_sgemm' /usr/bin/ld: bcnn_conv_layer.c:(.text+0x284b): undefined reference tocblas_sgemm' /usr/bin/ld: lib/libbcnn.a(bcnn_fc_layer.c.o): in function bcnn_forward_fullc_layer_cpu': bcnn_fc_layer.c:(.text+0x9bb): undefined reference tocblas_sgemm' /usr/bin/ld: lib/libbcnn.a(bcnn_fc_layer.c.o):bcnn_fc_layer.c:(.text+0xc29): more undefined references to `cblas_sgemm' follow collect2: error: ld returned 1 exit status make[2]: [CMakeFiles/bcnn-cl.dir/build.make:93: bin/bcnn-cl] Error 1 make[1]: [CMakeFiles/Makefile2:111: CMakeFiles/bcnn-cl.dir/all] Error 2 make: *** [Makefile:84: all] Error 2

Many thanks!

jnbraun commented 5 years ago

Hi,

It looks like a BLAS linking problem: which BLAS library are you using ? In general, I would recommend to use OpenBLAS. Depending on your system, you may need to install it yourself. See: https://github.com/xianyi/OpenBLAS and https://github.com/xianyi/OpenBLAS/wiki/Installation-Guide

Alternatively, you could build without external BLAS dependency by changing in the CMakeLists.txt: option(USE_BLAS "Build with BLAS library" ON) to option(USE_BLAS "Build with BLAS library" OFF)

Hope it helps