Why am I getting this error?

coder.checkGpuInstall('gpu','codegen','cudnn','quiet');
Warning: Selected MEX compiler 'MinGW64 Compiler (C++)' is not supported for GPU code generation. Refer to the
GPU Coder documentation for a list of supported GPU MEX compilers. 
> In coder.gpu.getDefaultGpuToolchain
  In emlckernel
  In emlckernel
  In emlcprivate
  In codegen
  In gpucoder.internal.system.checkGpuInstallPrivate
  In gpucoder.internal.system.checkGpuInstallPrivate
  In coder.checkGpuInstall (line 71) 
------------------------------------------------------------------------
nvcc  -c -rdc=true -Xcompiler "/wd 4819" -Xcompiler "/MD" -Xcudafe "--diag_suppress=unsigned_compare_with_zero --diag_suppress=useless_type_qualifier_on_return_type" -D_GNU_SOURCE -DMATLAB_MEX_FILE -Wno-deprecated-declarations     -arch sm_35  -I "C:\PROGRA~1\MATLAB\R2018b\simulink\include" -I "C:\PROGRA~1\MATLAB\R2018b\toolbox\shared\simtargets" -I "C:\Users\Maalini\AppData\Local\Temp\tpdfc236c2_f72f_440d_a56c_9f5754f918d1\codegen\mex\gpuSimpleTest" -I "C:\Users\Maalini\AppData\Local\Temp\tpdfc236c2_f72f_440d_a56c_9f5754f918d1" -I ".\interface" -I "C:\PROGRA~1\MATLAB\R2018b\extern\include" -I "." "gpuSimpleTest_data.cu"
'nvcc' is not recognized as an internal or external command,
operable program or batch file.
gmake: *** [gpuSimpleTest_data.obj] Error 1

------------------------------------------------------------------------
??? Build error: C++ compiler produced errors. See the Build Log for further details.

Code generation failed: View Error Report
Error using coder.checkGpuInstall (line 73)
One or more of the system checks did not pass, with the following errors ...
Host CUDA Environment: (Unable to execute the nvcc command. Check your CUDA SDK installation.)
Code Generation: (Test GPU code generation failed with the following error 'emlc:compilationError'.)
Compatible GPU: (A valid GPU device not found on the host system. Execution of the generated GPU MEX will not
be available.)

[dpb]

Seems pretty clear from the very first message:

Warning: Selected MEX compiler 'MinGW64 Compiler (C++)' is not supported for GPU code generation. Refer to the
GPU Coder documentation for a list of supported GPU MEX compilers.

[Dmitriy Ogureckiy]

the same error for me.

Answer 1

[Walter Roberson]

https://www.mathworks.com/help/gpucoder/gs/install-prerequisites.html#mw_aa8b0a39-45ea-4295-b244-52d6e6907bff

You need Visual Studio to compile for GPU Coder

[Hema Maalini]

Thanks I will try with it

[Abdelwahab Afifi]

I have the same problem. any solutions?

[Francis Tiong]

The problem is fixed for me when I installed gcc 6.5.0.

[Walter Roberson]

gcc can only be used for GPU Coder on Linux, not on Windows; for Windows you must have Visual Studios.

[ikeuwanuakwa]

I installed Visual studios 2019 and I am getting the error

Error using dlquantization.instrument

The value of 'executionEnvironment' is invalid. No GPU available. dlquantizer requires a GPU machine to quantize a network object.

Error in dlquantizer/calibrate (line 25)

results = dlquantization.instrument(obj.NetworkObject, p.Results.data, obj.DLAccelData, 'BatchSize', p.Results.batchSize,

'MiniBatchSize', p.Results.miniBatchSize, 'ExecutionEnvironment', obj.ExecutionEnvironment);

[Walter Roberson]

ikeuwanuakwa : do you have a supported NVIDIA GPU ? The supported execution environments for that function are only GPU or FPGA.

Answer 2

[Hüseyin Tunç]

First download visuaal studio 2019 with sdk applications and write mex -setup to command window and then choose vs 2019 and c++.

[Dmitriy Ogureckiy]

what are the sdk ? and how to choose vs 2019 and C++ and where ?

[Walter Roberson]

https://visualstudio.microsoft.com/vs/older-downloads/ . It looks like you will need to log in to download the older releases.

[Dmitriy Ogureckiy]

this doesn't work

[Walter Roberson]

@Dmitriy Ogureckiy

Are you saying that although you created a Microsoft account, Microsoft refused to let you download VS 2019 ?

Are you saying that although you were able to download VS 2019, that your MacOS Sierra system refused to install the product?

Are you saying that you got everything installed seemingly okay, but you still encountered a message "No GPU available" ?

[Dmitriy Ogureckiy]

@Walter Roberson

I use windows 10 and I have lenovo ideapad310-15ISK with GPU Geforce 920MX. I installed VS 2019, but I have error. I don't certain about preferencies that I set up.

[Walter Roberson]

okay what error do you observe?

[kunal gokhe]

Hii, i'm also facing same issue, ive win 10 with GTX GPU, ive installed VS2019 but its showing host compiler c+ not found

Answer 3

[TripleS SS]

I had similar problem.

Run gpuDevice from terminal

It poped an error that my nvidia driver is not supported and I have to update it first.