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
Segmentation fault (core dumped) on -stdpar=gpu for do concurrent codes nvc, nvc++ and nvfortran nvbugs	0	3	February 1, 2025
Unresolved symbols to OpenACC acc_malloc in my program with nvc++ nvc, nvc++ and nvfortran	20	26	January 31, 2025
Can __attribute__((always_inline)) inline be used with nvc++ and functions containing #acc loops? nvc, nvc++ and nvfortran	2	3	January 31, 2025
OpenACC + CUDA implementation nvc, nvc++ and nvfortran	7	37	January 30, 2025
Implementation Status of the 'Rank' Function nvc, nvc++ and nvfortran	6	300	January 30, 2025
A nice tip for copying C++ structs in openacc nvc, nvc++ and nvfortran	2	17	January 30, 2025
OpenMP segfaults with allocatable array of derived type nvc, nvc++ and nvfortran	1	8	January 29, 2025
Operator precedence bug on NVC compiler nvc, nvc++ and nvfortran nvbugs , nvcc	2	11	January 29, 2025
Nvc++ / g++ bitfield incompatibility nvc, nvc++ and nvfortran	6	53	January 28, 2025
Found compiler bug with __builtin_bit_cast on NVC++ 24.11 nvc, nvc++ and nvfortran nvbugs	4	43	January 27, 2025
Nvfortran compilation error for stdpar nvc, nvc++ and nvfortran	6	26	January 27, 2025
Omp target data use_device_ptr vs use_device_addr nvc, nvc++ and nvfortran	12	394	January 27, 2025
Function with same name as intrinsic function in submodule leads to ICE nvc, nvc++ and nvfortran	3	23	January 27, 2025
Nvfortran-24.9 Regression: runtime segfault with optimization nvc, nvc++ and nvfortran	5	49	January 27, 2025
Unable to get code to run on multiple GPUs nvc, nvc++ and nvfortran	6	57	January 24, 2025
Tesla P100 Issue – Processing Stops at 8MiB nvc, nvc++ and nvfortran drive-hardware-setup , driver	1	15	January 23, 2025
Unexpected error when accessing an optional scalar argument inside an OpenACC kernel with `default(present)` nvc, nvc++ and nvfortran	3	11	January 23, 2025
Just released: HPC SDK v25.1 nvc, nvc++ and nvfortran	1	12	January 23, 2025
Just released: HPC SDK v25.1 Legacy PGI Compilers Please refer to the Release Notes for full details. Download the current release at https://developer.nvidia.com/nvidia-hpc-sdk-downloads. View the current documentation.	1	6	January 23, 2025
Is it necessary to create an interface in CUDA Fortran to call cudaMallocPitch nvc, nvc++ and nvfortran	1	8	January 17, 2025
How to map private dynamic array to the GPU with OpenMP and nvc? nvc, nvc++ and nvfortran	20	50	January 31, 2025
Out of bounds issue when using `lbound/ubound` inside an OpenACC kernel with `nvfortran` nvc, nvc++ and nvfortran	2	18	January 16, 2025
OpenACC code using gpu=managed is faster than explicit data management for multiple gpu computation nvc, nvc++ and nvfortran	3	27	January 14, 2025
Async Issue: Dual GPU Parallel Execution Runs Sequentially nvc, nvc++ and nvfortran	9	36	January 27, 2025
Why is there still several CPU-to-GPU transfers between two consecutive kernel calls in CUDA? nvc, nvc++ and nvfortran	2	14	January 13, 2025
Why are there still so many CPU to GPU data transfer operations between the two kernel functions, occupying 80% of the entire cudaMemcpy API? nvc, nvc++ and nvfortran	1	9	January 13, 2025
"Why cudaMemcpy Shows Higher Duration in API Calls Than GPU Activities in nvprof?" nvc, nvc++ and nvfortran	5	18	January 13, 2025
Unexpected nvc++ (24.11) "dinit" compiler error with __m128 zero init nvc, nvc++ and nvfortran	1	10	January 10, 2025
Simulation using Multi GPU with OpenMP+OpenACC nvc, nvc++ and nvfortran	7	46	January 10, 2025
Assistance Needed with GPU Memory Allocation Error When Packing and Unpacking Arrays nvc, nvc++ and nvfortran	5	13	January 9, 2025