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Commit Graph

117 Commits

Author SHA1 Message Date
9e3c187a4d Save current state 2017-11-06 17:05:25 +01:00
8363edfcdb Perform some minor changes to GMRES code 2017-11-06 16:17:44 +01:00
e0819d395f Merge remote-tracking branch 'upstream/develop' into feature/new-solver-algorithms 2017-11-06 13:09:36 +01:00
360efd0088 Improved treatment of reverse asked for by chris.
Truncate the basis.
Power method renormalises
2017-11-02 22:05:31 +00:00
19010ff66a Merge remote-tracking branch 'upstream/develop' into feature/new-solver-algorithms 2017-10-30 13:16:46 +01:00
fe4d9b003c More digits 2017-10-30 00:04:47 +00:00
84b441800f Merge branch 'develop' into feature/lanczos-reorg 2017-10-27 14:21:38 +01:00
5a477ed29e Perform minor style correction 2017-10-27 14:46:18 +02:00
54128d579a Make MR a bit more verbose 2017-10-27 14:45:29 +02:00
1bad64ac6a Some formatting 2017-10-27 14:35:04 +02:00
15dfa9f663 Change stopping criterion implementation in MR solver + some cleanup 2017-10-27 14:33:25 +02:00
2185b0d651 Correct author in the file 2017-10-27 14:32:38 +02:00
f61c0b5d03 Very early version of MR solver 2017-10-27 14:09:02 +02:00
f96c800d25 Passes reload of coarse basis 2017-10-27 09:43:22 +01:00
32a52d7583 Move the local coherence lanczos into algorithms.
Keep the I/O in the tester. Other people can copy this method to write other I/O formats.
2017-10-27 09:04:31 +01:00
0c4ddaea0b Cleaning up 2017-10-26 23:31:46 +01:00
034de160bf Staggered updates : Schur fixed and added a unit test for Test_staggered_cg_schur.cc giving stronger check 2017-10-26 20:58:46 +01:00
31f99574fa Moving these out of algorithms 2017-10-26 07:47:42 +01:00
a34c8a2961 Update to IRL; getting close to the structure I would like. 2017-10-26 07:45:56 +01:00
d5f661ba70 Save intermediate state 2017-10-25 10:38:26 +02:00
1ab8d5cc13 Save two more files 2017-10-24 16:58:05 +02:00
789e892865 Save current state 2017-10-24 16:58:04 +02:00
53cfa44d7a Save current state 2017-10-24 16:58:03 +02:00
e325929851 ALl codes compile against the new Lanczos call signature 2017-10-13 14:02:43 +01:00
47af3565f4 Logging improvement; reunified the Lanczos codes 2017-10-13 13:23:07 +01:00
4b4d187935 Reunified the Lanczos implementations 2017-10-13 13:22:44 +01:00
9aff354ab5 Final version prior to reunification 2017-10-13 13:22:26 +01:00
cb9ff20249 Approx tests and lanczos improvement 2017-10-13 11:30:50 +01:00
9fe6ac71ea Starting reorg of Blocked lanczos 2017-10-11 10:12:07 +01:00
bf58557fb1 Block compressed Lanczos 2017-10-10 14:15:11 +01:00
a1d80282ec cb factorise 2017-10-10 13:49:31 +01:00
f0e084a88c Schur staggered 2017-10-10 10:00:43 +01:00
4f8b6f26b4 Merge branch 'develop' into feature/dwf-multirhs 2017-10-02 11:41:49 +01:00
771a1b8e79 Merge pull request #128 from paboyle/feature/CG-reliable-update
Feature/cg reliable update
2017-09-21 10:12:03 +01:00
b83b2b1415 Stability improvement to BCG. Force m_rr hermitian beyond rounding. 2017-09-04 14:09:47 +01:00
d9cd4f0273 Staggered multinode block cg debugged. Missing global sum.
Code stalls and resumes on KNL at cambridge. Curious.

CG iterations 23ms each, then 3200 ms pauses. Mean bandwidth reports
as 200MB/s. Comms dominant in the report. However, the time behaviour suggests it
is *bursty*.... Could be swap to disk?
2017-08-23 15:07:18 +01:00
9939b267d2 Added switching to fallback linear operator in reliable update CG, and added recalculation of b parameter on update. 2017-07-31 13:39:44 -04:00
9f280b82c4 Added mixed-precision CG with reliable updates 2017-07-25 11:30:41 -04:00
e504260f3d Able to run a test job splitting into multiple MPI subdomains. 2017-06-22 18:53:11 +01:00
e8b95bd35b Clean up finished. Could shrink Lanczos to around 400 lines at a push 2017-06-21 02:50:09 +01:00
7e35286860 Simplified lanczos, added Eigen diagonalisation.
Curious if we can deprecate dependencly on BLAS.
Will see when we get 48^3 running on our BG/Q port
2017-06-21 02:26:03 +01:00
0486ff8e79 Improved the lancos 2017-06-20 18:46:01 +01:00
e9cc21900f Block solver complete for staggered. Now stable on mass 0.003 and
gives 8x (!) speed up on Haswell laptop vs. standard CG for 8 RHS solves.

166 iterations vs. 537 iterations so algorithmic gain + 2x in flop rate gain.

Better than a slap in the face with a wet kipper.
2017-06-20 12:37:41 +01:00
cfe3cd76d1 Block solver improvements 2017-06-19 14:04:21 +01:00
2439999ec8 Warning elimination; drop to -O2 on G++ bad versions 2017-05-06 14:44:49 +01:00
3344788fa1 Merge branch 'develop' into feature/hmc_generalise 2017-05-01 12:13:56 +01:00
8e161152e4 MultiRHS solver improvements with slice operations moved into lattice and sped up.
Block solver requires a lot of performance work.
2017-04-18 10:51:55 +01:00
3141ebac10 MultiRHS working, starting to optimise. Block doesn't and I thought it already was; puzzled. 2017-04-17 10:50:19 +01:00
7ede696126 Non compile of tests fixed 2017-04-16 23:40:00 +01:00
a8db024c92 Cleaning up the dense matrix and lanczos sector 2017-04-15 08:54:11 +01:00