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r1105: avoid long running time occasionally (#771)

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Caused by highly repetitive minimizers on a query sequence. The solution is to
filter out these query minimizers.
This commit is contained in:
Heng Li
2021-08-15 19:43:01 -04:00
parent cc14d1afdf
commit 05a8a45d44
8 changed files with 40 additions and 2 deletions
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map.c
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@@ -252,6 +252,7 @@ void mm_map_frag(const mm_idx_t *mi, int n_segs, const int *qlens, const char **
hash = __ac_Wang_hash(hash);
collect_minimizers(b->km, opt, mi, n_segs, qlens, seqs, &mv);
if (opt->q_occ_frac > 0.0f) mm_seed_mz_flt(b->km, &mv, opt->mid_occ, opt->q_occ_frac);
if (opt->flag & MM_F_HEAP_SORT) a = collect_seed_hits_heap(b->km, opt, opt->mid_occ, mi, qname, &mv, qlen_sum, &n_a, &rep_len, &n_mini_pos, &mini_pos);
else a = collect_seed_hits(b->km, opt, opt->mid_occ, mi, qname, &mv, qlen_sum, &n_a, &rep_len, &n_mini_pos, &mini_pos);