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optimize LU_kernel_bmod for small cases, and add an important .noalias()

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Gael Guennebaud
2012-07-29 22:26:00 +02:00
parent ce30d50e3e
commit 8f6d5eacb4
3 changed files with 85 additions and 48 deletions
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5
Eigen/src/SparseLU/SparseLU_panel_bmod.h
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@@ -118,7 +118,10 @@ void LU_panel_bmod(const int m, const int w, const int jcol, const int nseg, Sca
// Perform a trianglar solve and block update,
// then scatter the result of sup-col update to dense[]
no_zeros = kfnz - fsupc;
LU_kernel_bmod(segsize, dense_col, tempv, lusup, luptr, nsupr, nrow, lsub, lptr, no_zeros);
if(segsize==1) LU_kernel_bmod<1>::run(segsize, dense_col, tempv, lusup, luptr, nsupr, nrow, lsub, lptr, no_zeros);
else if(segsize==2) LU_kernel_bmod<2>::run(segsize, dense_col, tempv, lusup, luptr, nsupr, nrow, lsub, lptr, no_zeros);
else if(segsize==3) LU_kernel_bmod<3>::run(segsize, dense_col, tempv, lusup, luptr, nsupr, nrow, lsub, lptr, no_zeros);
else LU_kernel_bmod<Dynamic>::run(segsize, dense_col, tempv, lusup, luptr, nsupr, nrow, lsub, lptr, no_zeros);
} // End for each column in the panel
} // End for each updating supernode