Skip to content

Deactivate OpenMP multithreading during MUMPS factorization #147

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
julianlitz wants to merge 6 commits into
base: main
Choose a base branch
from
Open

Deactivate OpenMP multithreading during MUMPS factorization #147

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
4246d05
Disable multithreading in MUMPS initialization
julianlitz Jan 8, 2026
ef14d5d
Disable multithreading in MUMPS initialization
julianlitz Jan 8, 2026
5345d30
Disable multithreading in Mumps solver initialization
julianlitz Jan 8, 2026
668917b
Disable multithreading in Mumps solver initialization
julianlitz Jan 8, 2026
5f700f8
Disable multithreading in Mumps solver initialization
julianlitz Jan 8, 2026
e22ba60
Update initializeMumps.cpp
julianlitz Jan 8, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion src/DirectSolver/DirectSolver-COO-MUMPS-Give/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ void DirectSolverGive::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solver, Spars
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down
2 changes: 1 addition & 1 deletion src/DirectSolver/DirectSolver-COO-MUMPS-Take/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ void DirectSolverTake::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solver, Spars
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down
4 changes: 2 additions & 2 deletions src/ExtrapolatedSmoother/ExtrapolatedSmootherGive/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ void ExtrapolatedSmootherGive::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solve
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down Expand Up @@ -109,4 +109,4 @@ void ExtrapolatedSmootherGive::finalizeMumpsSolver(DMUMPS_STRUC_C& mumps_solver)
dmumps_c(&mumps_solver);
}

#endif
#endif
4 changes: 2 additions & 2 deletions src/ExtrapolatedSmoother/ExtrapolatedSmootherTake/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,7 @@ void ExtrapolatedSmootherTake::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solve
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down Expand Up @@ -109,4 +109,4 @@ void ExtrapolatedSmootherTake::finalizeMumpsSolver(DMUMPS_STRUC_C& mumps_solver)
dmumps_c(&mumps_solver);
}

#endif
#endif
4 changes: 2 additions & 2 deletions src/Smoother/SmootherGive/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ void SmootherGive::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solver, SparseMat
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down Expand Up @@ -108,4 +108,4 @@ void SmootherGive::finalizeMumpsSolver(DMUMPS_STRUC_C& mumps_solver)
dmumps_c(&mumps_solver);
}

#endif
#endif
4 changes: 2 additions & 2 deletions src/Smoother/SmootherTake/initializeMumps.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ void SmootherTake::initializeMumpsSolver(DMUMPS_STRUC_C& mumps_solver, SparseMat
mumps_solver.ICNTL(38) = 600; // Estimates compression rate of LU factors
mumps_solver.ICNTL(39) = 500; // Estimates compression rate of contribution blocks
// ICNTL(40-47) Don't exist
mumps_solver.ICNTL(48) = 1; // Multithreading with tree parallelism
mumps_solver.ICNTL(48) = 0; // Multithreading with tree parallelism
mumps_solver.ICNTL(49) = 0; // Compact workarray id%S at the end of factorization phase
// ICNTL(50-55) Don't exist
mumps_solver.ICNTL(56) =
Expand Down Expand Up @@ -108,4 +108,4 @@ void SmootherTake::finalizeMumpsSolver(DMUMPS_STRUC_C& mumps_solver)
dmumps_c(&mumps_solver);
}

#endif
#endif