Why do I calculate that the output is all zero? Is my call command wrong? （PGI, FORTRAN,CUDA）Please help me

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

Win10
Graphics card: NVIDIA Quadro gv100 32g
Environment: VS2017+SDK10.0+CUDA10.0+PGI 18.0
Programming language：Fortran
Command：pgfortran -Mcuda=cuda10.0,cc70,ptxinfo,maxregcount:32 1.cuf

result: the output of serial computing part is correct, but the output of parallel computing part is 0.

2

Sorry but there’s not enough information here to help determine why you’re getting incorrect results. Are you able to provide a small reproducing example?