The source code and dockerfile for the GSW2024 AI Lab.
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/*
* This is component of StoRM - Cuda Plugin to check whether type alignment matches the assumptions done while optimizing the code.
*/
#include <cstdint>
#include <utility>
#include <vector>
#define CONTAINER_SIZE 100ul
template <typename IndexType, typename ValueType>
int checkForAlignmentOfPairTypes(size_t containerSize, IndexType const firstValue, ValueType const secondValue) {
std::vector<std::pair<IndexType, ValueType>>* myVector = new std::vector<std::pair<IndexType, ValueType>>();
for (size_t i = 0; i < containerSize; ++i) {
myVector->push_back(std::make_pair(firstValue, secondValue));
}
size_t myVectorSize = myVector->size();
IndexType* firstStart = &(myVector->at(0).first);
IndexType* firstEnd = &(myVector->at(myVectorSize - 1).first);
ValueType* secondStart = &(myVector->at(0).second);
ValueType* secondEnd = &(myVector->at(myVectorSize - 1).second);
size_t startOffset = reinterpret_cast<size_t>(secondStart) - reinterpret_cast<size_t>(firstStart);
size_t endOffset = reinterpret_cast<size_t>(secondEnd) - reinterpret_cast<size_t>(firstEnd);
size_t firstOffset = reinterpret_cast<size_t>(firstEnd) - reinterpret_cast<size_t>(firstStart);
size_t secondOffset = reinterpret_cast<size_t>(secondEnd) - reinterpret_cast<size_t>(secondStart);
delete myVector;
myVector = nullptr;
if (myVectorSize != containerSize) {
return -2;
}
// Check for alignment:
// Requirement is that the pairs are aligned like: first, second, first, second, first, second, ...
if (sizeof(IndexType) != sizeof(ValueType)) {
return -3;
}
if (startOffset != sizeof(IndexType)) {
return -4;
}
if (endOffset != sizeof(IndexType)) {
return -5;
}
if (firstOffset != ((sizeof(IndexType) + sizeof(ValueType)) * (myVectorSize - 1))) {
return -6;
}
if (secondOffset != ((sizeof(IndexType) + sizeof(ValueType)) * (myVectorSize - 1))) {
return -7;
}
return 0;
}
int main(int argc, char* argv[]) {
int result = 0;
result = checkForAlignmentOfPairTypes<uint_fast64_t, double>(CONTAINER_SIZE, 42, 3.14);
if (result != 0) {
return result;
}
return 0;
}