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Commit Graph

131 Commits

Author SHA1 Message Date
Yong-Chull Jang
fbe1209f7e count converged eigenvalues not assuming candidates are sorted 2018-01-31 12:10:24 -05:00
Yong-Chull Jang
dc6f637e70 change GparityDomainWallFermion to ZMobius and add command line options to read boundary phase and omega 2018-01-27 08:21:27 -05:00
Yong-Chull Jang
44b218a595 force hermicity to the block alpha and force diagonal of the block beta to be real 2017-12-29 23:26:17 -05:00
Yong-Chull Jang
3cb8cb7282 'typename' is added to compile with AVX512 using GCC7.2.0; a semicolon was missing in Grid_avx512.h and the bug is fixed. Option SKL is added to configure script for skylake processor specific AVX512 operations. Code can be compiled with --enable-simd=SKL using GCC 7.2.0, but Test_simd fails. AVX512 support for complex double type with non-intel compilers makes this error; it needs a review. 2017-12-23 14:54:07 -05:00
Yong-Chull Jang
89c4e9b168 first complete version of IRBL; requires practical test and clean up 2017-12-21 23:13:39 -05:00
Yong-Chull Jang
fe406e230d block with a single vector case is working with IRBL 2017-12-18 11:26:42 -05:00
Yong-Chull Jang
5139eaf491 block Lanczos construction is added. 2017-12-03 23:55:22 -05:00
Chulwoo Jung
3a754fcd51 Merge branch 'develop' of https://github.com/paboyle/Grid into feature/Lanczos 2017-10-27 17:34:35 -04:00
Azusa Yamaguchi
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
paboyle
9fe6ac71ea Starting reorg of Blocked lanczos 2017-10-11 10:12:07 +01:00
Christopher Kelly
ef61b549e6 Merge branch 'feature/Lanczos' into ckelly_develop4 2017-10-10 13:41:43 -04:00
paboyle
bf58557fb1 Block compressed Lanczos 2017-10-10 14:15:11 +01:00
paboyle
a1d80282ec cb factorise 2017-10-10 13:49:31 +01:00
Azusa Yamaguchi
f0e084a88c Schur staggered 2017-10-10 10:00:43 +01:00
paboyle
4f8b6f26b4 Merge branch 'develop' into feature/dwf-multirhs 2017-10-02 11:41:49 +01:00
Peter Boyle
771a1b8e79 Merge pull request #128 from paboyle/feature/CG-reliable-update
Feature/cg reliable update
2017-09-21 10:12:03 +01:00
Azusa Yamaguchi
b83b2b1415 Stability improvement to BCG. Force m_rr hermitian beyond rounding. 2017-09-04 14:09:47 +01:00
Chulwoo Jung
3006663b9c Schur solver for staggered type (hermition Mpc) opertors 2017-08-31 21:32:01 -04:00
Azusa Yamaguchi
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
Chulwoo Jung
0145685f96 Added Staggered Type Preconditioned operator 2017-08-18 01:44:31 -04:00
Chulwoo Jung
e73e4b4002 Minor changes fixes 2017-08-11 01:35:25 -04:00
Chulwoo Jung
caa6605b43 Still tweaking memory saving routines in Lanczos 2017-08-07 00:01:04 -04:00
Christopher Kelly
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
Chulwoo Jung
191fbf85fc Added ImplicitlyRestartedLanczosCJ to Algorithms.h 2017-07-28 15:33:59 -04:00
Christopher Kelly
9f280b82c4 Added mixed-precision CG with reliable updates 2017-07-25 11:30:41 -04:00
Chulwoo Jung
93650f3a61 Adding back (temporarily) dense matrix routines until Lanczos is fininalized 2017-07-24 21:49:25 -04:00
Chulwoo Jung
cab4b4d063 Deleting old include file references 2017-07-24 20:51:31 -04:00
Chulwoo Jung
cf4b30b2dd re-adding ImplcitlyRestartedLanczos 2017-07-24 20:40:25 -04:00
Chulwoo Jung
c51d0b4078 Merge branch 'develop' of https://github.com/paboyle/Grid into feature/Lanczos 2017-07-24 20:35:29 -04:00
paboyle
e504260f3d Able to run a test job splitting into multiple MPI subdomains. 2017-06-22 18:53:11 +01:00
paboyle
e8b95bd35b Clean up finished. Could shrink Lanczos to around 400 lines at a push 2017-06-21 02:50:09 +01:00
paboyle
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
paboyle
0486ff8e79 Improved the lancos 2017-06-20 18:46:01 +01:00
Azusa Yamaguchi
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
Azusa Yamaguchi
cfe3cd76d1 Block solver improvements 2017-06-19 14:04:21 +01:00
Chulwoo Jung
2f4cbeb4d5 Minor changes 2017-06-12 18:25:18 -04:00
Chulwoo Jung
fb7c4fb815 Recovering lapack interface without array allocation 2017-06-07 00:00:59 -04:00
Chulwoo Jung
00bb71e5af Checking in before reworking lapack interface 2017-06-06 16:26:41 -04:00
Chulwoo Jung
cfed2c1ea0 Broken Lanczos. Going back to an older verion temporarily. 2017-06-06 12:14:45 -04:00
Chulwoo Jung
b1b15f0b70 Further fixes from multidimensional array 2017-06-05 23:13:41 -04:00
Chulwoo Jung
927c7ae3ed changed allocation for LAPACK temporaries, to avoid crashing with some compilers (reported by Christoph) 2017-05-25 21:43:53 -04:00
Chulwoo Jung
05d04ceff8 Adding SimpleLanczos 2017-05-25 12:30:47 -04:00
Chulwoo Jung
5c479ce663 Merge branch 'develop' of https://github.com/paboyle/Grid into feature/Lanczos 2017-05-24 18:58:53 -04:00
Chulwoo Jung
4bf9d65bf8 Checking in memory saving version of Lanczos 2017-05-24 18:57:32 -04:00
Chulwoo Jung
3a056c4dff Re-adding Bisection for SimpleLanczos 2017-05-22 18:23:03 -04:00
Chulwoo Jung
b0ba651654 Turning off the final sort for now 2017-05-19 10:49:09 -04:00
Chulwoo Jung
25d4c175c3 Cleaning up Lanczos 2017-05-18 18:33:47 -04:00
paboyle
2439999ec8 Warning elimination; drop to -O2 on G++ bad versions 2017-05-06 14:44:49 +01:00
Chulwoo Jung
a8d7986e1c Temporary (hopefully) change to run with GCC for now. 2017-05-05 10:55:07 -04:00
Chulwoo Jung
92ec509bfa Commiting to move to Jlab 2017-05-04 19:32:00 -04:00