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Checking for integer divisions in cartesian full

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This commit is contained in:
Guido Cossu 2017-08-08 10:31:12 +01:00
parent 06e6f8de00
commit 44051aecd1
1 changed files with 67 additions and 63 deletions
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122
lib/cartesian/Cartesian_full.h
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@ -62,77 +62,81 @@ public:
return shift; return shift;
} }
GridCartesian(const std::vector<int> &dimensions, GridCartesian(const std::vector<int> &dimensions,
const std::vector<int> &simd_layout, const std::vector<int> &simd_layout,
const std::vector<int> &processor_grid const std::vector<int> &processor_grid) : GridBase(processor_grid)
) : GridBase(processor_grid)
{ {
/////////////////////// ///////////////////////
// Grid information // Grid information
/////////////////////// ///////////////////////
_ndimension = dimensions.size(); _ndimension = dimensions.size();
_fdimensions.resize(_ndimension); _fdimensions.resize(_ndimension);
_gdimensions.resize(_ndimension); _gdimensions.resize(_ndimension);
_ldimensions.resize(_ndimension); _ldimensions.resize(_ndimension);
_rdimensions.resize(_ndimension); _rdimensions.resize(_ndimension);
_simd_layout.resize(_ndimension); _simd_layout.resize(_ndimension);
_lstart.resize(_ndimension); _lstart.resize(_ndimension);
_lend.resize(_ndimension); _lend.resize(_ndimension);
_ostride.resize(_ndimension); _ostride.resize(_ndimension);
_istride.resize(_ndimension); _istride.resize(_ndimension);
_fsites = _gsites = _osites = _isites = 1; _fsites = _gsites = _osites = _isites = 1;
for(int d=0;d<_ndimension;d++){ for (int d = 0; d < _ndimension; d++)
_fdimensions[d] = dimensions[d]; // Global dimensions {
_gdimensions[d] = _fdimensions[d]; // Global dimensions _fdimensions[d] = dimensions[d]; // Global dimensions
_simd_layout[d] = simd_layout[d]; _gdimensions[d] = _fdimensions[d]; // Global dimensions
_fsites = _fsites * _fdimensions[d]; _simd_layout[d] = simd_layout[d];
_gsites = _gsites * _gdimensions[d]; _fsites = _fsites * _fdimensions[d];
_gsites = _gsites * _gdimensions[d];
//FIXME check for exact division // Use a reduced simd grid
_ldimensions[d] = _gdimensions[d] / _processors[d]; //local dimensions
assert(_ldimensions[d] * _processors[d] == _gdimensions[d]);
// Use a reduced simd grid _rdimensions[d] = _ldimensions[d] / _simd_layout[d]; //overdecomposition
_ldimensions[d]= _gdimensions[d]/_processors[d]; //local dimensions assert(_rdimensions[d] * _simd_layout[d] == _ldimensions[d]);
_rdimensions[d]= _ldimensions[d]/_simd_layout[d]; //overdecomposition
_lstart[d] = _processor_coor[d]*_ldimensions[d];
_lend[d] = _processor_coor[d]*_ldimensions[d]+_ldimensions[d]-1;
_osites *= _rdimensions[d];
_isites *= _simd_layout[d];
// Addressing support _lstart[d] = _processor_coor[d] * _ldimensions[d];
if ( d==0 ) { _lend[d] = _processor_coor[d] * _ldimensions[d] + _ldimensions[d] - 1;
_ostride[d] = 1; _osites *= _rdimensions[d];
_istride[d] = 1; _isites *= _simd_layout[d];
} else {
_ostride[d] = _ostride[d-1]*_rdimensions[d-1]; // Addressing support
_istride[d] = _istride[d-1]*_simd_layout[d-1]; if (d == 0)
} {
_ostride[d] = 1;
_istride[d] = 1;
} }
else
/////////////////////// {
// subplane information _ostride[d] = _ostride[d - 1] * _rdimensions[d - 1];
/////////////////////// _istride[d] = _istride[d - 1] * _simd_layout[d - 1];
_slice_block.resize(_ndimension);
_slice_stride.resize(_ndimension);
_slice_nblock.resize(_ndimension);
int block =1;
int nblock=1;
for(int d=0;d<_ndimension;d++) nblock*=_rdimensions[d];
for(int d=0;d<_ndimension;d++){
nblock/=_rdimensions[d];
_slice_block[d] =block;
_slice_stride[d]=_ostride[d]*_rdimensions[d];
_slice_nblock[d]=nblock;
block = block*_rdimensions[d];
} }
}
///////////////////////
// subplane information
///////////////////////
_slice_block.resize(_ndimension);
_slice_stride.resize(_ndimension);
_slice_nblock.resize(_ndimension);
int block = 1;
int nblock = 1;
for (int d = 0; d < _ndimension; d++)
nblock *= _rdimensions[d];
for (int d = 0; d < _ndimension; d++)
{
nblock /= _rdimensions[d];
_slice_block[d] = block;
_slice_stride[d] = _ostride[d] * _rdimensions[d];
_slice_nblock[d] = nblock;
block = block * _rdimensions[d];
}
}; };
}; };
} }
#endif #endif