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tqcq 2024-10-24 04:03:22 +00:00
parent f62c2d393c
commit c9c6095c76
1 changed files with 9 additions and 3 deletions
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12
drama/src/rev-mc.c
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@ -172,7 +172,7 @@ reduce_masks(std::vector<uint64_t> masks)
//---------------------------------------------------------- //----------------------------------------------------------
// from https://graphics.stanford.edu/~seander/bithacks.html#NextBitPermutation // from https://graphics.stanford.edu/~seander/bithacks.html#NextBitPermutation
uint64_t inline uint64_t
next_bit_permutation(uint64_t v) next_bit_permutation(uint64_t v)
{ {
uint64_t t = v | (v - 1); uint64_t t = v | (v - 1);
@ -300,8 +300,9 @@ find_row_mask(std::vector<set_t> &sets,
row_mask <<= CL_SHIFT;// skip the lowest 6 bits since they're used for CL addressing row_mask <<= CL_SHIFT;// skip the lowest 6 bits since they're used for CL addressing
while (row_mask < last_mask) { while (row_mask < last_mask) {
uint64_t next_row_mask = next_bit_permutation(row_mask);
if (row_mask & LS_BITMASK(CL_SHIFT)) { if (row_mask & LS_BITMASK(CL_SHIFT)) {
row_mask = next_bit_permutation(row_mask); row_mask = next_row_mask;
continue; continue;
} }
@ -316,7 +317,7 @@ find_row_mask(std::vector<set_t> &sets,
break; break;
next_mask: next_mask:
row_mask = next_bit_permutation(row_mask); row_mask = next_row_mask;
} }
// super hackish way to recover the real row mask // super hackish way to recover the real row mask
@ -330,6 +331,9 @@ find_row_mask(std::vector<set_t> &sets,
} }
//---------------------------------------------------------- //----------------------------------------------------------
#pragma push_options
#pragma optimize("O3")
void void
rev_mc(size_t sets_cnt, size_t threshold, size_t rounds, size_t m_size, char *o_file, uint64_t flags) rev_mc(size_t sets_cnt, size_t threshold, size_t rounds, size_t m_size, char *o_file, uint64_t flags)
{ {
@ -413,6 +417,8 @@ rev_mc(size_t sets_cnt, size_t threshold, size_t rounds, size_t m_size, char *o_
free_buffer(&mem); free_buffer(&mem);
} }
#pragma pop_options
// Fin. // Fin.
//---------------------------------------------------------- //----------------------------------------------------------