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add matrix builder

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This commit is contained in:
tqchen
2014-09-01 21:30:03 -07:00
parent 9d3e09ff2a
commit e43bb91185
2 changed files with 115 additions and 4 deletions
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7
src/io/page_fmatrix-inl.hpp
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@@ -121,7 +121,7 @@ class CSCMatrixManager {
size_t len = col_ptr_[cidx+1] - col_ptr_[cidx];
if (p_page->NumFreeEntry() < len) return false;
ColBatch::Entry *p_data = p_page->AllocEntry(len);
fi_->Seek(col_ptr_[cidx]);
fi_->Seek(col_ptr_[cidx] * sizeof(ColBatch::Entry) + sizeof(size_t));
utils::Check(fi_->Read(p_data, sizeof(ColBatch::Entry) * len) != 0,
"invalid column buffer format");
p_page->col_data.push_back(ColBatch::Inst(p_data, len));
@@ -285,8 +285,7 @@ class FMatrixPage : public IFMatrix {
row_iter_->BeforeFirst();
while (row_iter_->Next()) {
const RowBatch &batch = row_iter_->Value();
for (size_t i = 0; i < batch.size; ++i) {
}
}
row_iter_->BeforeFirst();
size_t ktop = 0;
@@ -294,7 +293,7 @@ class FMatrixPage : public IFMatrix {
const RowBatch &batch = row_iter_->Value();
for (size_t i = 0; i < batch.size; ++i) {
if (ktop < buffered_rowset_.size() &&
buffered_rowset_[ktop] == batch.base_rowid+i) {
buffered_rowset_[ktop] == batch.base_rowid + i) {
++ktop;
// TODO1
}