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fix typo in src/common/hist.cc BuildHistKernel (#7116)
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farfarawayzyt authored Jul 21, 2021
1 parent 9f7f8b9 commit e64ee65
Showing 1 changed file with 4 additions and 4 deletions.
8 changes: 4 additions & 4 deletions src/common/hist_util.cc
Original file line number Diff line number Diff line change
Expand Up @@ -159,13 +159,13 @@ void BuildHistKernel(const std::vector<GradientPair>& gpair,
const size_t idx_gh = two * rid[i];

if (do_prefetch) {
const size_t icol_start_prftch = any_missing ? row_ptr[rid[i+Prefetch::kPrefetchOffset]] :
const size_t icol_start_prefetch = any_missing ? row_ptr[rid[i+Prefetch::kPrefetchOffset]] :
rid[i + Prefetch::kPrefetchOffset] * n_features;
const size_t icol_end_prefect = any_missing ? row_ptr[rid[i+Prefetch::kPrefetchOffset]+1] :
icol_start_prftch + n_features;
const size_t icol_end_prefetch = any_missing ? row_ptr[rid[i+Prefetch::kPrefetchOffset]+1] :
icol_start_prefetch + n_features;

PREFETCH_READ_T0(pgh + two * rid[i + Prefetch::kPrefetchOffset]);
for (size_t j = icol_start_prftch; j < icol_end_prefect;
for (size_t j = icol_start_prefetch; j < icol_end_prefetch;
j+=Prefetch::GetPrefetchStep<uint32_t>()) {
PREFETCH_READ_T0(gradient_index + j);
}
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