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Profiling tools help analyze the performance of parallel programs by identifying bottlenecks, measuring execution time, and providing insights into resource usage. Using a profiler enables developers to fine-tune their parallel programs, ensuring optimal performance and resource utilization.

GNU Profiler

1. gprof : profiling simple serial C code
2. gprof : profiling complex serial C code
3. gprof : profiling simple serial Fortran code
4. gprof : profiling complex serial Fortran code

Intel Vtune Profiler

1. Intel Vtune Command Line Interface (CLI) : Hotspots profiling for serial C code
2. Intel Vtune GUI : Hotspots profiling for serial C code
3. Intel Vtune Command Line Interface (CLI) : OpenMP profiling
4. Intel Vtune GUI : OpenMP profiling

Nvidia Nsight Systems

1. Nvidia Nsight Systems : Profiling for CUDA code
2. Nvidia Nsight Systems: Profiling for OpenACC code

Nvidia Nsight Compute

1. Nvidia Nsight Compute: Profiling for CUDA code
2. Nvidia Nsight Compute: Profiling for OpenACC code