Carlos
Reputation: 421
OpenMP: what is the difference between "taskloop" and "omp for" performance wise?
"taskloop" is introduced in OpenMP 4.5. It can take clauses from both loop and task constructs (except depend clause AFAIK).
However, I'm wondering if "taskloop" and "omp for" constructs differ performance wise too.
Upvotes: 3
Views: 1722
Answers (1)
Laci
Reputation: 2818
I think it may depends on the actual problem. To parallelize a for loop omp for can be faster than tasks, because it offers several different scheduling scheme for your needs. In my experience (solving a particular problem using clang12 compiler) omp for produces a bit faster code than tasks (on Ryzen 5 7800X).
Upvotes: 1
Related Questions
- Difference between #pragma omp parallel and #pragma omp parallel for
- omp parallel vs. omp parallel for
- How do "omp single" and "omp task" provide parallelism?
- What is the difference between using OMP TASK with a loop outside and OMP TASKLOOP with a loop inside?
- Difference between OpenMP #pragma omp for v/s #pragma omp parallel for?
- pragma omp parallel for vs. pragma omp parallel
- OMP: What is the difference between OMP PARALLEL DO and OMP DO (Without parallel directive at all)
- Difference between omp for and omp parallel
- OpenMP task with and without parallel
- Difference between two omp for loops