Accelerated Computing HPC Compilers

Legacy PGI Compilers This forum contains the contents from the original PGI User Forums. Please post questions related to PGI compilers here. nvc, nvc++ and nvfortran Greetings and welcome to the NVIDIA HPC Compilers forum. Post your questions and comments here pertaining to the NVIDIA C, C++ and Fortran HPC compilers, and to their interoperation with NVCC and other HPC SDK components.

Topic	Replies	Views	Activity
NVHPC 25.1: nvc++ cannot find <iostream> nvc, nvc++ and nvfortran	8	34	September 15, 2025
Runtime error with acc routine nvc, nvc++ and nvfortran	2	8	September 15, 2025
Flag to control operation reording when FMA is turned on for GPU code nvc, nvc++ and nvfortran	2	15	September 10, 2025
Nvfortran 25.5: Internal compiler error. flowgraph: node is zero nvc, nvc++ and nvfortran	5	16	September 10, 2025
SUM() with dim parameter is slow when annotated with OpenACC "kernels" nvc, nvc++ and nvfortran	2	19	September 9, 2025
Building a workstation using Quadro GP100 and secondary GPU for rendering display nvc, nvc++ and nvfortran	2	12	September 8, 2025
Nvfortran: reducing optimation level by multiple -On does not work nvc, nvc++ and nvfortran	9	488	September 8, 2025
Wrong output with scalars and OpenACC: continued nvc, nvc++ and nvfortran	2	29	September 8, 2025
Explicit deallocation in subroutine inside fortran openmp offload kernel crashes nvc, nvc++ and nvfortran	3	51	September 5, 2025
Building OpenMPI 5 with NVHPC nvc, nvc++ and nvfortran	6	206	September 3, 2025
Possible bug in NVFORTRAN 24.9 with OpenMP causing segmentation fault nvc, nvc++ and nvfortran	4	34	August 25, 2025
NVFortran openmp offloading to multiple GPUs nvc, nvc++ and nvfortran	11	91	August 22, 2025
Different behavior of nvfortran with elemental optional arugments nvc, nvc++ and nvfortran	2	30	August 18, 2025
Bug of nvfortran 25.7 with empty arrays nvc, nvc++ and nvfortran nvbugs	1	37	August 18, 2025
NVFORTRAN-F-0000-Internal compiler error. unexpected storage type nvc, nvc++ and nvfortran	3	29	August 16, 2025
Offloading, declare target and PARAMETER in Fortran nvc, nvc++ and nvfortran	2	26	August 14, 2025
Using %re and %im in nvfortran nvc, nvc++ and nvfortran	1	22	August 13, 2025
Default -tp setting? nvc, nvc++ and nvfortran	4	45	August 12, 2025
Bug? Compiling with `-g -O0` produces a compute sanitizer error, removing `-g` removes the error nvc, nvc++ and nvfortran	2	31	August 11, 2025
Bug: NVHPC 25.3 and checking unallocated Fortran arrays in OpenMP target loops nvc, nvc++ and nvfortran	5	68	August 25, 2025
Nvfortran internal compiler error using derived types with `class(*)` variable nvc, nvc++ and nvfortran	4	40	August 6, 2025
How to write monitor data to screen from within data copy region nvc, nvc++ and nvfortran	4	36	August 5, 2025
Different results between GPU vs multicore CPU mode nvc, nvc++ and nvfortran	7	31	August 4, 2025
OpenMP target region inside parallel region causes internal compiler error nvc, nvc++ and nvfortran	3	479	August 1, 2025
How to trace NANs in nvidia GPU compiler nvc, nvc++ and nvfortran	3	33	July 31, 2025
Version 25.7 breaks custom install of zlib nvc, nvc++ and nvfortran	6	34	August 13, 2025
Performance worsens as dataset becomes larger nvc, nvc++ and nvfortran	3	28	July 29, 2025
Problems allocating OMP threadprivate pinned arrays of custom types nvc, nvc++ and nvfortran cuda , hpc-sdk	6	45	July 29, 2025
Nvfortran OpenMP offload segfaults when updating derived type with allocatable member Legacy PGI Compilers	6	65	July 29, 2025
Reduction(+: force) nvc, nvc++ and nvfortran	6	37	July 28, 2025