Internal:Metric Adaptive CDT3D: Difference between revisions
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==Preliminary data== | ==Preliminary data== | ||
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|+ All time data are given in seconds. | |||
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! rowspan="2" | # Tetrahedra | ! rowspan="2" | # Tetrahedra | ||
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Recovery | Recovery | ||
! colspan="6" style="text-align: center;" | Mesh Refinement | ! colspan="6" style="text-align: center;" | Mesh Refinement | ||
! rowspan="2" | Total Time | ! rowspan="2" | Total Time | ||
! rowspan="2" | Memory (GB) | ! rowspan="2" | Memory (GB) | ||
|- | |- | ||
Revision as of 12:31, 9 May 2018
Preliminary data
| # Tetrahedra | # Vertices | Isotropic Boundary
Refinement (MMGS) |
Boundary
Recovery |
Mesh Refinement | Total Time | Memory (GB) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| # Iterations | Par. Deactivation | Par. Vertex Creation | Vertex Insertion | Partition | Par. Reconnection | |||||||
| case 1 (x8) | 14,094,106 | 2,390,948 | 3.04 | 4.93 | 78 | 7.42 | 12.38 | 5.62 | 82.91 | 238.17 | 352.66 (+3.04) | 6.1 |
| case 2 (x10) | 26,859,966 | 4,546,172 | 3.78 | 11.64 | 80 | 14.69 | 25.17 | 9.85 | 154.10 | 437.97 | 655.05 (+3.78) | 10.4 |
| case 3 (x20) | 209,865,483 | 35,344,507 | 25.64 | 169.53 | 276 | 311.71 | 381.31 | 74.69 | 3,781.33 | 9,321.10 | 14,045.37 (+25.64) | 74.31 |
Notes
- Using a scaled unit cube ([0,1]3) and Polar-1 metric from UGAWG
- No boundary adaptation,due to the increasing prepossessing time and the difficulty to recover the boundary.
- Grouping (that enhances significantly performance) is disabled due to Delaunay criterion issues.
- The experiments performed on a DELL workstation with Linux Red Hat Enterprise, 24 hardware cores Intel® Xeon® CPU E5-2697v2@2.70 GHz, and 757 GB RAM
- Using 24+24 (HyperThreading) threads
- parameters
--met=1 --meval=2 --mrecm2=1 --mrec4=1 --nadapt=0 --mpp=2 --qstatr=1 --outmesh=${NAME}.meshb --ndfs=0 --nthreads=24 --nbuckets=640 --nthreadsaf=24 --nbucketsaf=640 --blockmul=500000 --nqual=0 --nminpts=30 --ordt=1 --pardeact=1 --mdse=0
TO DO (shorterm)
- Try enabling sorting ( sortp)
TO DO (long term)
- Parallel sorting (
_gnu_parallel) http://epic-alfa.kavli.tudelft.nl/share/doc/libstdc++-docs-4.4.7/html/api/a00865_source.html#l00074 - Replace spin locks in vertex insertion
- Rollback treatment
- investigate insphere and grouping
mrecm2=0 - smoothing : Tetrahedral Mesh Improvement Using Swapping and Smoothing, Lori A. Freitag and Carl Ollivier-Gooch