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restructure for parallel execution

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This commit is contained in:
Stanislaw Kaushanski
2020-12-14 12:52:05 +01:00
parent 0d0d12edff
commit 4dbbb73f01
2 changed files with 47 additions and 28 deletions
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raven_spn/raven_spn
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raven_spn/src/raven_spn.cpp
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@@ -16,17 +16,40 @@ bool double_equals(double a, double b, double epsilon = 0.001)
return std::abs(a - b) < epsilon;
}
void run_xspn() {
void run_xspn(int in_addr, int out_addr) {
spn::mode_reg() = 0;
spn::input_length_reg() = 100; // each sample consists of 5 uint8 values
spn::input_addr_reg() = 0x800C0000;
spn::output_addr_reg() = 0x800A0000;
spn::num_of_in_beats_reg() = 8; // Number of AXI4 burst beats needed to load all input data
spn::num_of_out_beats_reg() = 13; // Number of AXI4 burst beats needed to store all result data
spn::input_length_reg() = 500; // each sample consists of 5 uint8 values
spn::input_addr_reg() = in_addr;
spn::output_addr_reg() = out_addr;
spn::num_of_in_beats_reg() = 40; // Number of AXI4 burst beats needed to load all input data
spn::num_of_out_beats_reg() = 64; // Number of AXI4 burst beats needed to store all result data
spn::start_reg() = 1;
}
wait_for_interrupt();
spn::interrupt_reg() = 1;
void load_input_data(int addr, const int k=0) {
int * mem_base = (int *) addr;
int offset = k * 5;
for (size_t i = 0, j = 0; j < 625; i += 4, j++) { // load 5000 samples
*(mem_base + j) = input_data.at(offset + i);
*(mem_base + j) |= (input_data.at(offset + i + 1) << 8) & 0x0000FF00;
*(mem_base + j) |= (input_data.at(offset + i + 2) << 16) & 0x00FF0000;
*(mem_base + j) |= (input_data.at(offset + i + 3) << 24) & 0xFF000000;
}
}
bool check_results(int addr, int k) {
bool result = 0;
int step = 500;
double *res_base = (double*) (addr);
for (int i = 0; i < step; i++) {
if (!double_equals(res_base[i] * ln2, ref_data.at(k + i))) {
printf("XSPN ref %d comparison FAILED\n", k + i);
result = 1;
}
}
printf("Compared samples %d - %d with the reference\n", k, k+step);
return result;
}
/*! \brief main function
@@ -34,37 +57,33 @@ void run_xspn() {
*/
int main() {
platform_init();
int ret_val = 0;
spn::mode_reg() = 1;
spn::start_reg() = 1;
wait_for_interrupt();
spn::interrupt_reg() = 1;
printf("READOUT HW:0x%x\n", spn::readout_reg());
for (int k = 0; k < 10000; k+=100) {
// write input samples into the memory
int * mem_base = (int *) 0x800C0000;
int offset = k * 5;
int in_addr = 0x800C0000;
int out_addr = 0x800A0000;
load_input_data(in_addr);
for(size_t i = 0, j = 0; j < 125; i += 4, j++) {
*(mem_base+j) = input_data.at(offset+i);
*(mem_base+j) |= (input_data.at(offset+i+1) << 8) & 0x0000FF00;
*(mem_base+j) |= (input_data.at(offset+i+2) << 16) & 0x00FF0000;
*(mem_base+j) |= (input_data.at(offset+i+3) << 24) & 0xFF000000;
}
int step = 500; // number of samples to be process at once
for (int k = 0; k < 10000; k+=step) {
printf("XSPN process samples %d - %d\n", k, k+100);
run_xspn();
run_xspn(in_addr, out_addr);
printf("XSPN processes samples %d - %d\n", k, k+step);
// read calculation results from the memory
double * res_base = (double*) 0x800A0000;
// pre-load data for the next run while HW accelerator is running
if(k<(10000-step))
load_input_data(in_addr, k+step);
for (int i = 0; i < 100; i++) {
if (!double_equals(res_base[i] * ln2, ref_data.at(k+i))) {
printf("XSPN ref %d comparison FAILED\n", k+i);
}
}
wait_for_interrupt();
spn::interrupt_reg() = 1;
ret_val = check_results(out_addr, k);
}
return 0;
return ret_val;
}