getting link error in mex or cuda

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Abeera Tariq
Abeera Tariq on 3 Jun 2015
Answered: Joss Knight on 15 Jun 2015
I am trying to compile a cuda file but getting the error in linkage
>> nvmex -f nvmexopts.bat AddVectors.cu -IF:\cuda\include -LF:\cuda\lib -lcudart
Warning: cudart specified with -l option not found on -L path
AddVectors.cu
tmpxft_00000fb4_00000000-8_AddVectors.compute_13.cudafe1.gpu
tmpxft_00000fb4_00000000-12_AddVectors.compute_13.cudafe2.gpu
AddVectors.cu
tmpxft_00000fb4_00000000-6_AddVectors.compute_10.cudafe1.gpu
tmpxft_00000fb4_00000000-16_AddVectors.compute_10.cudafe2.gpu
AddVectors.cu
tmpxft_00000fb4_00000000-3_AddVectors.compute_20.cudafe1.gpu
tmpxft_00000fb4_00000000-20_AddVectors.compute_20.cudafe2.gpu
AddVectors.cu
AddVectors.cu
AddVectors.cu
tmpxft_00000fb4_00000000-8_AddVectors.compute_13.cudafe1.cpp
Microsoft (R) Incremental Linker Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
AddVectors.obj
LINK : error LNK2001: unresolved external symbol mexFunction
C:\Users\abeera\AppData\Local\Temp\mex_jKYTU6\templib.x : fatal error LNK1120: 1 unresolved externals
C:\PROGRA~1\MATLAB\R2013A\BIN\NVMEX.PL: Error: Link of 'AddVectors.mexw64' failed.
Error using nvmex (line 206)
Unable to complete successfully.
  1 Comment
James Tursa
James Tursa on 3 Jun 2015
Do you have a mexFunction in your code?

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Answers (1)

Joss Knight
Joss Knight on 15 Jun 2015
nvmex has been superseded by native mex support for CUDA MEX functions. Compile your function using mex by following the instructions in the documentation:
Here is a blog article to help you get going:

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