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Domain wall fermions now invert ; have the basis set up for

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Tanh/Zolo * (Cayley/PartFrac/ContFrac) * (Mobius/Shamir/Wilson)
Approx        Representation               Kernel.

All are done with space-time taking part in checkerboarding, Ls uncheckerboarded

Have only so far tested the Domain Wall limit of mobius, and at that only checked
that it
i)  Inverts
ii) 5dim DW == Ls copies of 4dim D2
iii) MeeInv Mee == 1
iv) Meo+Mee+Moe+Moo == M unprec.
v) MpcDagMpc is hermitan
vi) Mdag is the adjoint of M between stochastic vectors.

That said, the RB schur solve, RB MpcDagMpc solve, Unprec solve
all converge and the true residual becomes small; so pretty good tests.
This commit is contained in:
Peter Boyle
2015-06-02 16:57:12 +01:00
parent c851d0e705
commit 3845f267cb
36 changed files with 1500 additions and 220 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/algorithms/approx/Zolotarev.cc
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@ -58,6 +58,8 @@
/* Compute the partial fraction expansion coefficients (alpha) from the
* factored form */
namespace Grid {
namespace Approx {
static void construct_partfrac(izd *z) {
int dn = z -> dn, dd = z -> dd, type = z -> type;
@ -291,7 +293,7 @@ static void sncndnFK(INTERNAL_PRECISION u, INTERNAL_PRECISION k,
* Set type = 0 for the Zolotarev approximation, which is zero at x = 0, and
* type = 1 for the approximation which is infinite at x = 0. */
zolotarev_data* bfm_zolotarev(PRECISION epsilon, int n, int type) {
zolotarev_data* grid_zolotarev(PRECISION epsilon, int n, int type) {
INTERNAL_PRECISION A, c, cp, kp, ksq, sn, cn, dn, Kp, Kj, z, z0, t, M, F,
l, invlambda, xi, xisq, *tv, s, opl;
int m, czero, ts;
@ -412,7 +414,7 @@ zolotarev_data* bfm_zolotarev(PRECISION epsilon, int n, int type) {
return zd;
}
zolotarev_data* bfm_higham(PRECISION epsilon, int n) {
zolotarev_data* grid_higham(PRECISION epsilon, int n) {
INTERNAL_PRECISION A, M, c, cp, z, z0, t, epssq;
int m, czero;
zolotarev_data *zd;
@ -502,6 +504,7 @@ zolotarev_data* bfm_higham(PRECISION epsilon, int n) {
free(d);
return zd;
}
}}
#ifdef TEST
@ -707,4 +710,6 @@ int main(int argc, char** argv) {
return EXIT_SUCCESS;
}
#endif /* TEST */