- Jan 31, 2025
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Fabien Souille authored
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- Jan 29, 2025
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Johan FOURDRINOY authored
[mascaret][courlis] Bug fix in mascaret.dico (following merge !238) See merge request !239
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Johan FOURDRINOY authored
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Boris Basic authored
This fixes a bug on Windows that caused the contour of some meshes to be extracted incorrectly.
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- Jan 28, 2025
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Chi-Tuân Pham authored
[VnV] Changes for the IMDC system See merge request !237
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+ add missing med tag for the T3D lock-exchange sensitivity study
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Chi-Tuân Pham authored
(1 argument forgotten for GAIA + arguments for T2D and T3D called with optional syntax)
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Chi-Tuân Pham authored
[fix] Time Series extraction for longitude/latitude meshes across IDL (International Date Line) Closes #1034 See merge request !202
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(International Date Line)
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Johan FOURDRINOY authored
MASCARET new keyword VARIABLES_PRECISION Closes #1078 See merge request !238
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Johan FOURDRINOY authored
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- Jan 23, 2025
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Chi-Tuân Pham authored
- NERD for the advection of velocities (as for tracers) rather than characteristics to decrease differences between sequential and parallel runs - use of the non-hydrostatic version (but more CPU time consuming) and conjugate gradient + preconditiong = 34 = 2*17 to solve PPE (more efficient choice than GMRES here) - use of preconditioning 34 = 2*17 for the diffusion of tracers + velocities so that accuracy for the diffusion of tracers can be 1.E-15 without significant increase of CPU time - increase of MAXIMUM NUMBER OF ITERATIONS FOR ADVECTION SCHEMES to 100 Update of epsilons (1 order of magnitude less than before for tracers) Smaller GRAPHIC PRINTOUT PERIOD to draw time series for figure
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- Jan 20, 2025
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Chi-Tuân Pham authored
(Intel Turbo Boost on EDF clusters)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation (water depth + temperature, water depth up to machine accuracy) - solver and accuracy for propagation set to default (GMRES + 1.E-8) - accuracy for diffusion of tracers can be set to 1.E-15 without significant increase of CPU time - preconditioning for diffusion = 34 = 2*17 for tracers + velocities for more efficiency (less iterations) - solver and preconditioning for PPE = conjugate gradient (1) and 34 - non-hydrostatic version (new default since 8.0)
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Chi-Tuân Pham authored
- default options to solve propagation (Krylov space dimensions, accuracy) without significant increase of CPU time - no diffusion along x and y with keyword COEFFICIENT FOR HORIZONTAL DIFFUSION OF VELOCITIES = 0. rather than SCHEME FOR DIFFUSION OF VELOCITIES = 0
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- Jan 14, 2025
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Thierry Fouquet authored
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Thierry Fouquet authored
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- Jan 13, 2025
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Boris Basic authored
This allows CPUs to operate at a higher clock rate, to speed up CPU-bound calculations
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- Jan 09, 2025
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Chi-Tuân Pham authored
- SOLVER FOR PROPAGATION = 7 (GMRES = default) as quite more efficient than old choice 2 (conjugate residual) or 1 (conjugate gradient) This choice enables to set ACCURACY FOR PROPAGATION to its default value 1.E-8 rather than 1.E-6 with quite the same CPU times
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- Jan 08, 2025
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Chi-Tuân Pham authored
- TIDAL FLATS = YES (default value) to improve mass conservation (water depth + tracer, water depth up to machine accuracy) - SOLVER FOR PROPAGATION = 7 (GMRES = default) as the most efficient - with theses choices of solvers, accuracies for propagation and PPE can be set to default = 1.E-8 - ==> less differences between sequential and parallel runs
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation (water depth + temperature, water depth up to machine accuracy) - SCHEME FOR ADVECTION OF VELOCITIES = 5 (PSI) rather than 1 (characteristics) for better mass conservation + reduced differences between seq/par runs - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example - accuracies for diffusion of velocities/tracers/k-epsilon + PPE set to 1.E-15 as easily and efficiently reached with this set-up
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Chi-Tuân Pham authored
- TIDAL FLATS = YES (default value) to improve mass conservation (water depth + tracer, water depth up to machine accuracy) - use preconditioning 34 for the diffusion of velocities (a little bit more efficient)
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Chi-Tuân Pham authored
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Chi-Tuân Pham authored
- use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES or CGSTAB (previous choice) for this example
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- Jan 07, 2025
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Chi-Tuân Pham authored
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- Dec 29, 2024
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Chi-Tuân Pham authored
- use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example - switch from characteristics to defaul advection scheme for velocities (LIPS) to decrease differences between sequential and parallel runs - use preconditioning 34 for the diffusion of velocities (a little bit more efficient) - default accuracies for propagation and PPE with this setting of solvers (1.E-8)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation of water - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example - accuracy for propagation decreased to 1.E-15 (improved differences between sequential and parallel runs) - switch to non-hydrostatic version
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Chi-Tuân Pham authored
Vertical velocity W along z, rather than horizontal velocity V along x
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Chi-Tuân Pham authored
- SOLVER FOR DIFFUSION OF VELOCITIES = 1 (conjugate gradient) + PRECONDITIONING FOR DIFFUSION OF VELOCITIES = 34 (= 2*17) rather than GMRES - accuracy for propagation and diffusion of velocities = 1.E-15 easily reached with previous choices - ACCURACY FOR PPE set to 1.E-9
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Chi-Tuân Pham authored
- SOLVER FOR PROPAGATION = 7 (GMRES) + SOLVER FOR PPE = 1 (conjugate gradient) + PRECONDITIONING FOR PPE = 34 (=2*17) rather than conjugate residual (= 2) for propagation and GMRES for PPE - accuracies for propagation and PPE set to default values (1.E-8)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example - use of preconditioning 34 for diffusion of every variable (more efficient) - accuracy for PPE and propagation decreased from 10^-10 to 10^-12
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- Dec 27, 2024
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Chi-Tuân Pham authored
(including non-hydrostatic version: no differences except for W, light for W) IMPLICITATION FOR VELOCITIES has no impact
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation of water in particular for prismatic elements (also chosen for tetrahedra)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation of water - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example (very few iterations are needed) - ACCURACY FOR PROPAGATION = 1.E-15 as easily solved (only 2 iterations needed) - ACCURACY FOR PPE = 1.E-9 (less than 10 iterations needed) - PRECONDITIONING FOR DIFFUSION OF K-EPSILON = 34 to improve efficiency (turbulent variable) - PRECONDITIONING FOR DIFFUSION OF VELOCITIES set to default (not understood why 0 previously, no clear differences)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation of water - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, more efficient than GMRES for this example (very few iterations are needed) - ACCURACY FOR DIFFUSION OF VELOCITIES = 1.E-15 as easily solved + PRECONDITIONING FOR DIFFUSION OF VELOCITIES = 34 to improve efficiency
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) and TIDAL FLATS = YES (default value) to improve mass conservation of water
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- Dec 26, 2024
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation of water + tracer - use of gradient conjugate + preconditioning 34 = 2*17 to solve PPE, quite more efficient than GMRES for this example - switch to non-hydrostatic version (default) but no significant differences
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation of water - use of gradient conjugate to solve PPE (a little bit more efficient)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation of water (already chosen for NH example) - use of default advection scheme for velocities (LIPS): better parallelisation than with method of characteristics - use of gradient conjugate to solve PPE (little bit more efficient) Add comparison of the advection of tracers with PC1/PC2/LIPS Same time step for non-hydrostatic and hydrostatic versions (now = 0.4 s as NH before)
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Chi-Tuân Pham authored
- TREATMENT OF NEGATIVE DEPTHS = 2 (new default value since release 9.0) to improve mass conservation of water+tracer - preconditionings = 34 when possible (diffusion of velocities/tracers + PPE as using conjugate gradients) for great efficiency to converge to the chosen accuracy (down to 1.E-15 for the diffusion of tracers as easily reached for this example)
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