dispatch.hpp

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#ifndef TATAMI_MULT_SINGLE_VECTOR_DISPATCH_HPP
#define TATAMI_MULT_SINGLE_VECTOR_DISPATCH_HPP
 
#include "dense_row.hpp"
#include "dense_column.hpp"
#include "sparse_row.hpp"
#include "sparse_column.hpp"
 
namespace tatami_mult {
 
struct MultiplyWithSingleVectorOptions {
    MultiplyDenseRowWithSingleVectorOptions dense_row;
 
    MultiplyDenseColumnWithSingleVectorOptions dense_column;
 
    MultiplySparseRowWithSingleVectorOptions sparse_row;
 
    MultiplySparseColumnWithSingleVectorOptions sparse_column;
};
 
inline void set_num_threads(MultiplyWithSingleVectorOptions& options, int num_threads) {
    options.dense_row.num_threads = num_threads;
    options.dense_column.num_threads = num_threads;
    options.sparse_row.num_threads = num_threads;
    options.sparse_column.num_threads = num_threads;
}
 
template<std::size_t accumulators_ = 4, typename Value_, typename Index_, typename Right_, typename Output_>
void multiply_with_single_vector(
    const tatami::Matrix<Value_, Index_>& left,
    const Right_* const right,
    Output_* const output,
    const MultiplyWithSingleVectorOptions& options
) {
    if (left.is_sparse()) {
        if (left.prefer_rows()) {
            multiply_sparse_row_with_single_vector<accumulators_>(left, right, output, options.sparse_row);
        } else {
            multiply_sparse_column_with_single_vector(left, right, output, options.sparse_column);
        }
    } else {
        if (left.prefer_rows()) {
            multiply_dense_row_with_single_vector<accumulators_>(left, right, output, options.dense_row);
        } else {
            multiply_dense_column_with_single_vector(left, right, output, options.dense_column);
        }
    }
}
 
template<std::size_t accumulators_ = 4, typename Left_, typename Value_, typename Index_, typename Output_>
void multiply_with_single_vector(
    const Left_* const left,
    const tatami::Matrix<Value_, Index_>& right,
    Output_* const output,
    const MultiplyWithSingleVectorOptions& options
) {
    auto tright = tatami::make_DelayedTranspose(tatami::wrap_shared_ptr(&right));
    multiply_with_single_vector<accumulators_>(*tright, left, output, options);
}
 
}
 
#endif