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GPU / CPU unit test performance improvements

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This commit is contained in:
Javier Arribas
2016-06-17 16:29:07 +02:00
parent 5ff34ec91e
commit 2c327b0de4
2 changed files with 50 additions and 51 deletions
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13
src/tests/arithmetic/cpu_multicorrelator_test.cc
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@@ -46,14 +46,16 @@ void run_correlator_cpu(cpu_multicorrelator* correlator,
float d_carrier_phase_step_rad,
float d_code_phase_step_chips,
float d_rem_code_phase_chips,
int correlation_size,
int d_n_correlator_taps)
int correlation_size)
{
for(int k = 0; k < FLAGS_cpu_multicorrelator_iterations_test; k++)
{
correlator->Carrier_wipeoff_multicorrelator_resampler(d_rem_carrier_phase_rad,
d_carrier_phase_step_rad,
d_code_phase_step_chips,
d_rem_code_phase_chips,
correlation_size);
}
}
TEST(CPU_multicorrelator_test, MeasureExecutionTime)
@@ -124,8 +126,6 @@ TEST(CPU_multicorrelator_test, MeasureExecutionTime)
std::cout<<"Running "<<current_max_threads<<" concurrent correlators"<<std::endl;
gettimeofday(&tv, NULL);
long long int begin = tv.tv_sec * 1000000 + tv.tv_usec;
for(int k = 0; k < FLAGS_cpu_multicorrelator_iterations_test; k++)
{
//create the concurrent correlator threads
for (int current_thread=0;current_thread<current_max_threads;current_thread++)
{
@@ -135,15 +135,13 @@ TEST(CPU_multicorrelator_test, MeasureExecutionTime)
d_carrier_phase_step_rad,
d_code_phase_step_chips,
d_rem_code_phase_chips,
correlation_sizes[correlation_sizes_idx],
d_n_correlator_taps));
correlation_sizes[correlation_sizes_idx]));
}
//wait the threads to finish they work and destroy the thread objects
for(auto &t : thread_pool){
t.join();
}
thread_pool.clear();
}
gettimeofday(&tv, NULL);
long long int end = tv.tv_sec * 1000000 + tv.tv_usec;
execution_times[correlation_sizes_idx] = static_cast<double>(end - begin) / (1000000.0 * static_cast<double>(FLAGS_cpu_multicorrelator_iterations_test));
@@ -162,6 +160,5 @@ TEST(CPU_multicorrelator_test, MeasureExecutionTime)
for (int n=0;n<max_threads;n++)
{
correlator_pool[n]->free();
delete(correlator_pool[n]);
}
}

10
src/tests/arithmetic/gpu_multicorrelator_test.cc
View File

@@ -34,6 +34,7 @@
#include <thread>
#include <cuda.h>
#include <cuda_runtime.h>
#include <cuda_profiler_api.h>
#include "cuda_multicorrelator.h"
#include "gps_sdr_signal_processing.h"
#include "GPS_L1_CA.h"
@@ -50,12 +51,15 @@ void run_correlator_gpu(cuda_multicorrelator* correlator,
int correlation_size,
int d_n_correlator_taps)
{
for(int k = 0; k < FLAGS_cpu_multicorrelator_iterations_test; k++)
{
correlator->Carrier_wipeoff_multicorrelator_resampler_cuda(d_rem_carrier_phase_rad,
d_carrier_phase_step_rad,
d_code_phase_step_chips,
d_rem_code_phase_chips,
correlation_size,
d_n_correlator_taps);
}
}
TEST(GPU_multicorrelator_test, MeasureExecutionTime)
@@ -121,11 +125,10 @@ TEST(GPU_multicorrelator_test, MeasureExecutionTime)
std::cout<<"Running "<<current_max_threads<<" concurrent correlators"<<std::endl;
gettimeofday(&tv, NULL);
long long int begin = tv.tv_sec * 1000000 + tv.tv_usec;
for(int k = 0; k < FLAGS_gpu_multicorrelator_iterations_test; k++)
{
//create the concurrent correlator threads
for (int current_thread=0;current_thread<current_max_threads;current_thread++)
{
//cudaProfilerStart();
thread_pool.push_back(std::thread(run_correlator_gpu,
correlator_pool[current_thread],
d_rem_carrier_phase_rad,
@@ -134,13 +137,13 @@ TEST(GPU_multicorrelator_test, MeasureExecutionTime)
d_rem_code_phase_chips,
correlation_sizes[correlation_sizes_idx],
d_n_correlator_taps));
//cudaProfilerStop();
}
//wait the threads to finish they work and destroy the thread objects
for(auto &t : thread_pool){
t.join();
}
thread_pool.clear();
}
gettimeofday(&tv, NULL);
long long int end = tv.tv_sec * 1000000 + tv.tv_usec;
execution_times[correlation_sizes_idx] = static_cast<double>(end - begin) / (1000000.0 * static_cast<double>(FLAGS_gpu_multicorrelator_iterations_test));
@@ -158,7 +161,6 @@ TEST(GPU_multicorrelator_test, MeasureExecutionTime)
for (int n=0;n<max_threads;n++)
{
correlator_pool[n]->free_cuda();
delete(correlator_pool[n]);
}