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// =================================================================================================
// This file is part of the CLBlast project. The project is licensed under the MIT license. This
// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
// width of 100 characters per line.
//
// Author(s):
// Cedric Nugteren <www.cedricnugteren.nl>
//
// This file implements the TestXY class (see the header for information about the class).
//
// =================================================================================================
#include <algorithm>
#include "correctness/testxy.h"
namespace clblast {
// =================================================================================================
// Constructor, initializes the base class tester and input data
template <typename T>
TestXY<T>::TestXY(const size_t platform_id, const size_t device_id,
const std::string &name, const std::vector<std::string> &options,
const Routine clblast_lambda, const Routine clblas_lambda):
Tester<T>{platform_id, device_id, name, options},
clblast_lambda_(clblast_lambda),
clblas_lambda_(clblas_lambda) {
// Computes the maximum sizes. This allows for a single set of input/output buffers.
auto max_dim = *std::max_element(kVectorDims.begin(), kVectorDims.end());
auto max_inc = *std::max_element(kIncrements.begin(), kIncrements.end());
auto max_offset = *std::max_element(kOffsets.begin(), kOffsets.end());
// Creates test input data
x_source_.resize(max_dim*max_inc + max_offset);
y_source_.resize(max_dim*max_inc + max_offset);
PopulateVector(x_source_);
PopulateVector(y_source_);
}
// ===============================================================================================
// Tests the routine for a wide variety of parameters
template <typename T>
void TestXY<T>::TestRegular(Arguments<T> &args, const std::string &name) {
TestStart("regular behaviour", name);
// Iterates over the vector dimension
for (auto &n: kVectorDims) {
args.n = n;
// Iterates over the increment-values and the offsets
for (auto &x_inc: kIncrements) {
args.x_inc = x_inc;
for (auto &x_offset: kOffsets) {
args.x_offset = x_offset;
for (auto &y_inc: kIncrements) {
args.y_inc = y_inc;
for (auto &y_offset: kOffsets) {
args.y_offset = y_offset;
// Computes the buffer sizes
auto x_size = n * x_inc + x_offset;
auto y_size = n * y_inc + y_offset;
if (x_size < 1 || y_size < 1) { continue; }
// Creates the OpenCL buffers
auto x_vec = Buffer(context_, CL_MEM_READ_WRITE, x_size*sizeof(T));
auto r_vec = Buffer(context_, CL_MEM_READ_WRITE, y_size*sizeof(T));
auto s_vec = Buffer(context_, CL_MEM_READ_WRITE, y_size*sizeof(T));
// Iterates over the values for alpha
for (auto &alpha: kAlphaValues) {
args.alpha = alpha;
// Runs the reference clBLAS code
x_vec.WriteBuffer(queue_, x_size*sizeof(T), x_source_);
r_vec.WriteBuffer(queue_, y_size*sizeof(T), y_source_);
auto status1 = clblas_lambda_(args, x_vec, r_vec, queue_);
// Runs the CLBlast code
x_vec.WriteBuffer(queue_, x_size*sizeof(T), x_source_);
s_vec.WriteBuffer(queue_, y_size*sizeof(T), y_source_);
auto status2 = clblast_lambda_(args, x_vec, s_vec, queue_);
// Tests for equality of the two status codes
if (status1 != StatusCode::kSuccess || status2 != StatusCode::kSuccess) {
TestErrorCodes(status1, status2, args);
continue;
}
// Downloads the results
std::vector<T> r_result(y_size, static_cast<T>(0));
std::vector<T> s_result(y_size, static_cast<T>(0));
r_vec.ReadBuffer(queue_, y_size*sizeof(T), r_result);
s_vec.ReadBuffer(queue_, y_size*sizeof(T), s_result);
// Checks for differences in the output
auto errors = size_t{0};
for (auto idn=size_t{0}; idn<n; ++idn) {
auto index = idn*y_inc + y_offset;
if (!TestSimilarity(r_result[index], s_result[index])) {
errors++;
}
}
// Tests the error count (should be zero)
TestErrorCount(errors, n, args);
}
}
}
}
}
}
TestEnd();
}
// =================================================================================================
// Tests the routine for cases with invalid OpenCL memory buffer sizes. Tests only on return-types,
// does not test for results (if any).
template <typename T>
void TestXY<T>::TestInvalidBufferSizes(Arguments<T> &args, const std::string &name) {
TestStart("invalid buffer sizes", name);
// Sets example test parameters
args.n = kBufferSize;
args.x_offset = 0;
args.y_offset = 0;
// Iterates over test buffer sizes
const std::vector<size_t> kBufferSizes = {0, kBufferSize - 1, kBufferSize};
for (auto &x_size: kBufferSizes) {
for (auto &y_size: kBufferSizes) {
// Iterates over test increments
for (auto &x_inc: kInvalidIncrements) {
args.x_inc = x_inc;
for (auto &y_inc: kInvalidIncrements) {
args.y_inc = y_inc;
// Creates the OpenCL buffers. Note: we are not using the C++ version since we explicitly
// want to be able to create invalid buffers (no error checking here).
auto x = clCreateBuffer(context_(), CL_MEM_READ_WRITE, x_size*sizeof(T), nullptr, nullptr);
auto x_vec = Buffer(x);
auto r = clCreateBuffer(context_(), CL_MEM_READ_WRITE, y_size*sizeof(T), nullptr, nullptr);
auto r_vec = Buffer(r);
auto s = clCreateBuffer(context_(), CL_MEM_READ_WRITE, y_size*sizeof(T), nullptr, nullptr);
auto s_vec = Buffer(s);
// Runs the two routines
auto status1 = clblas_lambda_(args, x_vec, r_vec, queue_);
auto status2 = clblast_lambda_(args, x_vec, s_vec, queue_);
// Tests for equality of the two status codes
TestErrorCodes(status1, status2, args);
}
}
}
}
TestEnd();
}
// =================================================================================================
// Compiles the templated class
template class TestXY<float>;
template class TestXY<double>;
template class TestXY<float2>;
template class TestXY<double2>;
// =================================================================================================
} // namespace clblast
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