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paboyle
2017-11-19 01:39:04 +00:00
parent 69929f20bb
commit 94b8fb5686
4 changed files with 102 additions and 20 deletions
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67
lib/lattice/Lattice_transfer.h
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@ -757,7 +757,74 @@ void precisionChange(Lattice<VobjOut> &out, const Lattice<VobjIn> &in){
// NB: Easiest to programme if keep in lex order.
//
/////////////////////////////////////////////////////////
/*
[0,0,0,0,0] S {V<4>{V<3>{(0,0),(0,0),(0,0)},V<3>{(0,0),(0,0),(0,0)},V<3>{(0,0),(0,0),(0,0)},V<3>{(0,0),(0,0),(0,0)}}}
[0,0,0,0,1] S {V<4>{V<3>{(1,0),(1,0),(1,0)},V<3>{(1,0),(1,0),(1,0)},V<3>{(1,0),(1,0),(1,0)},V<3>{(1,0),(1,0),(1,0)}}}
[0,0,0,0,2] S {V<4>{V<3>{(4,0),(4,0),(4,0)},V<3>{(4,0),(4,0),(4,0)},V<3>{(4,0),(4,0),(4,0)},V<3>{(4,0),(4,0),(4,0)}}}
[0,0,0,0,3] S {V<4>{V<3>{(5,0),(5,0),(5,0)},V<3>{(5,0),(5,0),(5,0)},V<3>{(5,0),(5,0),(5,0)},V<3>{(5,0),(5,0),(5,0)}}}
[0,0,0,0,4] S {V<4>{V<3>{(2,0),(2,0),(2,0)},V<3>{(2,0),(2,0),(2,0)},V<3>{(2,0),(2,0),(2,0)},V<3>{(2,0),(2,0),(2,0)}}}
[0,0,0,0,5] S {V<4>{V<3>{(3,0),(3,0),(3,0)},V<3>{(3,0),(3,0),(3,0)},V<3>{(3,0),(3,0),(3,0)},V<3>{(3,0),(3,0),(3,0)}}}
[0,0,0,0,6] S {V<4>{V<3>{(6,0),(6,0),(6,0)},V<3>{(6,0),(6,0),(6,0)},V<3>{(6,0),(6,0),(6,0)},V<3>{(6,0),(6,0),(6,0)}}}
[0,0,0,0,7] S {V<4>{V<3>{(7,0),(7,0),(7,0)},V<3>{(7,0),(7,0),(7,0)},V<3>{(7,0),(7,0),(7,0)},V<3>{(7,0),(7,0),(7,0)}}}
[0,0,0,0,8] S {V<4>{V<3>{(8,0),(8,0),(8,0)},V<3>{(8,0),(8,0),(8,0)},V<3>{(8,0),(8,0),(8,0)},V<3>{(8,0),(8,0),(8,0)}}}
[0,0,0,0,9] S {V<4>{V<3>{(9,0),(9,0),(9,0)},V<3>{(9,0),(9,0),(9,0)},V<3>{(9,0),(9,0),(9,0)},V<3>{(9,0),(9,0),(9,0)}}}
[0,0,0,0,10] S {V<4>{V<3>{(12,0),(12,0),(12,0)},V<3>{(12,0),(12,0),(12,0)},V<3>{(12,0),(12,0),(12,0)},V<3>{(12,0),(12,0),(12,0)}}}
[0,0,0,0,11] S {V<4>{V<3>{(13,0),(13,0),(13,0)},V<3>{(13,0),(13,0),(13,0)},V<3>{(13,0),(13,0),(13,0)},V<3>{(13,0),(13,0),(13,0)}}}
[0,0,0,0,12] S {V<4>{V<3>{(10,0),(10,0),(10,0)},V<3>{(10,0),(10,0),(10,0)},V<3>{(10,0),(10,0),(10,0)},V<3>{(10,0),(10,0),(10,0)}}}
[0,0,0,0,13] S {V<4>{V<3>{(11,0),(11,0),(11,0)},V<3>{(11,0),(11,0),(11,0)},V<3>{(11,0),(11,0),(11,0)},V<3>{(11,0),(11,0),(11,0)}}}
[0,0,0,0,14] S {V<4>{V<3>{(14,0),(14,0),(14,0)},V<3>{(14,0),(14,0),(14,0)},V<3>{(14,0),(14,0),(14,0)},V<3>{(14,0),(14,0),(14,0)}}}
[0,0,0,0,15] S {V<4>{V<3>{(15,0),(15,0),(15,0)},V<3>{(15,0),(15,0),(15,0)},V<3>{(15,0),(15,0),(15,0)},V<3>{(15,0),(15,0),(15,0)}}}
Process decomp
[A(0 1) A(2 3) B(0 1) B(2 3)] [ A(4 5) A(6 7) B(4 5) B(6 7)] [ A(8 9) A(10 11) B(8 9) B(10 11)] [A(12 13) A(14 15) B(12 13) B(14 15)]
A2A(Full)
-- divides M*fL into fP segments of size M*fL/fP = fL/sP
-- total is fP * fL/sP = M * fL
A(0 1) A(4 5) A(8 9) A(12 13)
A(2 3) A(6 7) A(10 11) A(14 15)
B(0 1) B(4 5) B(8 9) B(12 13)
B(2 3) B(6 7) B(10 11) B(14 15)
A2A(Split)
A(0 1) A(4 5) A(2 3) A(6 7)
A(8 9) A(12 13) A(10 11) A(14 15)
B(0 1) B(2 3) B(4 5) B(6 7)
B(8 9) B(10 11) B(12 13) B(14 15)
--------------------
-- General case
--------------------
G global lattice
fP - procs
sP - Procs in split grid
M - subdivisions/vectors - M*sP = fP ** constraint 1
fL = G/fP per node (full)
sL = G/sP per node split
[ G * M ] total = G*fP/sP.
[ Subdivide fL*M by fP => fL *M / fP = fL/fP *fP/sP = fL/sP ]
--------------------
-- 1st A2A chunk is fL*M/fP = G/fP *fP/sP /fP = fL/sP
-- Let cL = fL/sP chunk. ( Divide into fP/sP = M chunks )
-- node 0 1st cL of node 0,1,... fP-1 ; vector 0
-- node 1 2nd cL of node 0,1,... fP-1
-- node 2 3nd cL of node 0,1,... fP-1
-- node 3 4th cL of node 0,1,... fP-1
... when node > sP get vector 1 etc...
-- 2nd A2A (over sP nodes; subdivide the fP into sP chunks of M)
-- node 0 1st cL of node 0M..(1M-1); 2nd cL of node 0M..(1M-1))..
-- node 1 1st cL of node 1M..(2M-1); 2nd cL of node 1M..(2M-1)..
-- node 2 1st cL of node 2M..(3M-1); 2nd cL of node 2M..(3M-1)..
-- node 3 1st cL of node 3M..(3M-1); 2nd cL of node 2M..(3M-1)..
--
-- Insert correctly
*/
template<class Vobj>
void Grid_split(std::vector<Lattice<Vobj> > & full,Lattice<Vobj> & split)
{