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Hi all
I try to use dpct-beta05 on Windows 10 Version 1919 OS build 18363.778
The tested CUDA toolkit version is v10.2
The error looks like:
>dpct vector_add.cu NOTE: Could not auto-detect compilation database for file 'vector_add.cu' in 'C:\Users\jim\Workspace\cudatest' or any parent directory. The directory "dpct_output" is used as "out-root" Processing: C:\Users\jim\Workspace\cudatest\vector_add.cu [ERROR] Create file : d:\workspace\cudatest\dpct_outputc:\users\jim\workspace\cudatest\vector_add.dp.cpp fail: invalid argument dpct exited with code: -2 (Error: Saving output file(s))
BTW This process is ok on Ubuntu 18.04 with same dpct and CUDA toolkit version.
PS: dpct seems have no verbose output and on windows I don't know how to strace.
Thanks
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Hello all,
this issue has been fixed sometime ago. it is working on Windows now. The generated code is also compiled ok with dpcpp, and runs ok as well.
There're always improvements and new added support for additional APIs in the dpct for each release. Please make sure to download and install the latest release of oneAPI Base Toolkit.
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Hi Jim,
Thanks for reaching out to us!
Our team is working on your query, we will get back to you.
Could you please share the source code if possible. So that it will be helpful to investigate more regarding the issue you are facing.
Regards
Goutham
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Hi Goutham,
My code is really easy:
#include <cuda.h> #include <stdio.h> #define VECTOR_SIZE 256 __global__ void VectorAddKernel(float* A, float* B, float* C) { A[threadIdx.x] = threadIdx.x + 1.0f; B[threadIdx.x] = threadIdx.x + 1.0f; C[threadIdx.x] = A[threadIdx.x] + B[threadIdx.x]; } int main() { float *d_A, *d_B, *d_C; cudaMalloc(&d_A, VECTOR_SIZE*sizeof(float)); cudaMalloc(&d_B, VECTOR_SIZE*sizeof(float)); cudaMalloc(&d_C, VECTOR_SIZE*sizeof(float)); VectorAddKernel<<<1, VECTOR_SIZE>>>(d_A, d_B, d_C); float Result[VECTOR_SIZE] = { }; cudaMemcpy(Result, d_C, VECTOR_SIZE*sizeof(float), cudaMemcpyDeviceToHost); cudaFree(d_A); cudaFree(d_B); cudaFree(d_C); for (int i = 0; i < VECTOR_SIZE; i++) { if (i % 16 == 0) { printf("\n"); } printf("%f ", Result); } return 0; }
I suspect if some syscall failed in dpct on Windows 10, because dpct failed with "fail: invalid argument"
Thanks
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Hi Jim,
Thanks, for providing the source code.
We are able to migrate the same source code successfully without any errors. Below are my system environment details.
OS Version: Windows10
oneAPI Basekit Version: 2021.1-beta05
CUDA Toolkit Version: 10.1
However, to investigate more on your issue, we have escalated this to the concerned team.
Regards
Goutham
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Hello all,
this issue has been fixed sometime ago. it is working on Windows now. The generated code is also compiled ok with dpcpp, and runs ok as well.
There're always improvements and new added support for additional APIs in the dpct for each release. Please make sure to download and install the latest release of oneAPI Base Toolkit.

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