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Commit Graph

80 Commits

Author SHA1 Message Date
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
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
b12dc89d26 Commenting and clean up 2017-04-10 20:38:20 +09:00
d80d802f9d MultiRHS solver test 2017-04-10 00:12:12 +09:00
3d99b09dba Start of blockCG 2017-04-09 23:42:10 +09:00
e0571c872b Merge branch 'develop' into feature/hmc_generalise 2017-02-09 16:12:00 +00:00
c94133af49 Added iteration reporting to CG and mixed CG
Added ability to manually change the initial CG inner tolerance in mixed CG
Added .hpp files to filelist script
2017-02-02 17:04:42 -05:00
fad743fbb1 Build system sanity check: corrected several headers not in the <Grid/*> format 2017-01-26 17:00:41 -08:00
0bd296dda4 Adding check of the Dag part in the benchmark 2016-12-14 03:15:09 +00:00
5c74b6028b Commit for debugging, lot of IO 2016-12-13 06:35:30 +00:00
97cddda49e Merge branch 'feature/gen-simd' into feature/doxygen
# Conflicts:
#	Makefile.am
#	configure.ac
2016-11-19 13:11:13 +01:00
33dc1f51b5 Final sign off commits from Cori-1 2016-11-09 04:11:03 -08:00
e74417ca12 big build system polish 2016-10-31 16:31:27 +00:00
cb02b7088f Merge branch 'develop' into feature/doxygen
# Conflicts:
#	configure.ac
2016-10-09 13:35:44 +01:00
2e453dfbf5 Added some instrumentation to benchmark the force computation 2016-10-06 17:52:45 +01:00
b1cfb4d661 first try at a nicer Doxygen implementation 2016-08-05 15:29:18 +01:00
f4dd5062d7 Merge branch 'develop' of https://github.com/paboyle/Grid into develop 2016-07-15 19:26:06 +01:00
a0676beeb1 Open up dependency on Eigen and FFTW 2016-07-07 22:31:07 +01:00
c5106d0c03 Bugfix 2016-07-07 16:06:30 -04:00
25fafa9a89 Comment 2016-07-06 16:19:41 -04:00
85ed8175cb Implemented mixed precision CG. Fixed filelist to exclude lib/Old directory and include Config.h. 2016-07-06 15:57:04 -04:00
15f22425c8 Added option to prevent CG from exiting when it fails to converge 2016-07-06 14:50:01 -04:00
fa59789580 ConjugateGradient: cleaner output 2016-05-01 18:29:20 -07:00
92c2c7d3b5 SchurRedBlackDiagMooeeSolve: fix: guess was not initialised from input 2016-05-01 16:07:55 -07:00
af9c8d1372 -Checkerboard fixes for Lanczos 2016-04-06 13:50:56 -04:00
340428a1fe Eigen fixes and HDCR work 2016-03-30 00:16:02 -07:00
3920b2c0ab HDCR updates 2016-03-16 02:29:58 -07:00
090e7aa930 Merge remote-tracking branch 'origin/chulwoo-dec12-2015'
Merge Chulwoo's Lanczos related improvements.
Merge Nd!=4 fixes for pure gauge HMC from Evan.
2016-03-08 09:55:14 +00:00
2dce9c3cff HDCR running on 16^3 with 2x-3x speed up. 2016-03-08 01:01:50 -08:00
dc72293398 More timing info 2016-03-06 10:46:55 -08:00
ff129d9ad9 Redundant operations removed 2016-03-02 07:02:37 -08:00
9f0d9ade68 Added configure flag for LAPACK. Tested ImplicitlyRestartedLanczos::calc()
Checking in before cleaning up
2016-02-20 02:50:32 -05:00
bd84c23298 definitions reconciled. 2016-01-25 16:30:59 -05:00
b8fb05a422 Addtional routines for Lanczos (SYM2, Chebyshef).. 2016-01-25 01:26:25 -05:00
5c57d4f403 Merge branch 'master' of https://github.com/paboyle/Grid into scidac1_2
Conflicts:
	lib/qcd/action/fermion/WilsonKernels.h
2016-01-11 11:36:45 -05:00
5924e5a562 Merge branch 'master' of https://github.com/paboyle/Grid into scidac1_2
Conflicts:
	configure
	lib/qcd/action/Actions.h
	lib/qcd/action/fermion/WilsonKernels.h
2016-01-06 03:44:57 -05:00
aae8bf31a7 Global edit adding copyright and license info to every source file. 2016-01-02 14:51:32 +00:00
841a37f941 Fix to WilsonCompressor that fixes a bug in comms phase due to the sign change on gamma
matrix in hopping term.
Add logging of time spent in CG.
2015-12-29 23:49:41 +00:00
08edbb5cbe HMC bit repro across checkpoints. Fixed parallel RNG issue with threading.
Conclusion: c++11 distributions not thread safe and must us distinct dist as well as distinct engine
per site. Makes sense when you think of box muller. Also added a reset of dist on fill to ensure
repro across checkpoints.
2015-12-22 08:54:40 +00:00