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add hashfunction for checksum calculation

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This commit is contained in:
Max Lübke 2023-10-02 12:58:45 +02:00
parent 2097c0fe36
commit 381fa26aac
2 changed files with 15 additions and 1 deletions
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5
CMakeLists.txt
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@ -1,8 +1,13 @@
cmake_minimum_required(VERSION 3.25)
set(CMAKE_CXX_STANDARD 17)
project(sycl_example)
find_package(AdaptiveCpp REQUIRED)
find_library(LIB_XXHASH xxhash)
add_executable(sycl_comp sycl_comp.cpp)
add_sycl_to_target(TARGET sycl_comp)
target_link_libraries(sycl_comp PRIVATE ${LIB_XXHASH})

11
matrix.hpp
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@ -7,6 +7,8 @@
#include <numeric>
#include <vector>
#include <xxhash.h>
template <class T> struct Matrix {
std::uint32_t rows;
std::uint32_t cols;
@ -40,6 +42,10 @@ template <class T> struct Matrix {
return data[row_i * cols + col_j];
}
const T &operator()(std::uint32_t row_i, std::uint32_t col_j) const {
return data[row_i * cols + col_j];
}
Matrix<T> &operator=(const Matrix<T> &mat) {
this->rows = mat.rows;
this->cols = mat.cols;
@ -58,7 +64,10 @@ template <class T> struct Matrix {
return transposed;
}
T sum() const { return std::accumulate(data.begin(), data.end(), 0); }
XXH32_hash_t chksum() const {
constexpr XXH32_hash_t HASH_SEED = 42;
return XXH32(this->data.data(), data.size(), HASH_SEED);
}
};
template <class T> std::ostream &operator<<(std::ostream &os, Matrix<T> &mat) {