double get_chisqr_p(unsigned * first, unsigned * second) {
double CriticalValue = 0.0;
double XSqr;
unsigned int NumberOfEffectiveDatapoints = 0;
for (unsigned index = 0; index < 100; index++) {
if (first[index] + second[index] > 0.0)
NumberOfEffectiveDatapoints++;
XSqr = first[index] - second[index];
if (first[index] > 0.0)
CriticalValue += (XSqr * XSqr) / first[index];
}
/*
for (unsigned index = 0; index < 100; index++) {
std::cout << first[index] << " ";
}
std::cout << std::endl;
for (unsigned index = 0; index < 100; index++) {
std::cout << second[index] << " ";
}
std::cout << std::endl;
*/
if (NumberOfEffectiveDatapoints < 2)
NumberOfEffectiveDatapoints = 2;
double returnP = chisqr(NumberOfEffectiveDatapoints, CriticalValue);
std::cout << CriticalValue << "\t" << NumberOfEffectiveDatapoints << "\t" << returnP << std::endl;
return returnP;
}
float estimate_offpulse_redchi2(double *inprofs, foldstats *stats,
int numparts, int numsubbands,
int proflen, int numtrials, double dofeff)
// Randomly offset each pulse profile in a .pfd data square or cube
// and combine them to estimate a "true" off-pulse level. Do this
// numtrials times in order to improve the statistics. Return the
// inverse of the average of the off-pulse reduced-chi^2 (i.e. the
// correction factor). dofeff is the effective number of DOF as
// returned by DOF_corr().
{
int ii, jj, kk, offset, trialnum, phsindex, statindex;
float *chis;
double chi_avg, chi_var, redchi;
double prof_avg, prof_var, *prof_ptr, *sumprof;
sumprof = gen_dvect(proflen);
chis = gen_fvect(numtrials);
for (trialnum = 0; trialnum < numtrials; trialnum++) {
// Initialize the summed profile
for (ii = 0; ii < proflen; ii++)
sumprof[ii] = 0.0;
prof_avg = 0.0;
prof_var = 0.0;
prof_ptr = inprofs;
for (ii = 0; ii < numparts; ii++) { // parts
for (jj = 0; jj < numsubbands; jj++) { // subbands
statindex = ii * numsubbands + jj;
offset = random() % proflen;
phsindex = 0;
for (kk = offset; kk < proflen; kk++, phsindex++) // phases
sumprof[phsindex] += prof_ptr[kk];
for (kk = 0; kk < offset; kk++, phsindex++) // phases
sumprof[phsindex] += prof_ptr[kk];
prof_ptr += proflen;
prof_avg += stats[statindex].prof_avg;
prof_var += stats[statindex].prof_var;
}
}
/* Calculate the current chi-squared */
redchi = chisqr(sumprof, proflen, prof_avg, prof_var) / dofeff;
chis[trialnum] = (float) redchi;
}
avg_var(chis, numtrials, &chi_avg, &chi_var);
vect_free(chis);
vect_free(sumprof);
return 1.0/chi_avg;
}
double X2BetweenTwo(unsigned int * FirstOriginal, unsigned int * SecondOriginal, unsigned int dispots)
{
// default dispots = 100
// delare
double *ExpFirst;
double *ExpSecond;
double *SumBoth;
ExpFirst = new double [dispots + 1];
ExpSecond = new double [dispots + 1];
SumBoth = new double [dispots + 1];
double SumFirst = 0.0;
double SumSecond = 0.0;
double SumTotal = 0.0;
// calculation
for (unsigned i = 0; i < dispots; i++)
{
//Firstcount[i] = 0;
//Secondcount[i] = 0;
SumBoth[i] = FirstOriginal[i] + SecondOriginal[i];
SumFirst += FirstOriginal[i];
SumSecond += SecondOriginal[i];
}
SumTotal = SumFirst + SumSecond;
for (unsigned i = 0; i < dispots; i++)
{
ExpFirst[i] = SumBoth[i] * SumFirst / SumTotal;
ExpSecond[i] = SumBoth[i] * SumSecond / SumTotal;
}
double result = 0.0;
unsigned Degree = 0;
for (unsigned i = 0; i < dispots; i++)
{
if (FirstOriginal[i] + SecondOriginal[i] > 0.0) Degree++;
if (ExpFirst[i])
{
result += (FirstOriginal[i] - ExpFirst[i]) * (FirstOriginal[i] - ExpFirst[i]) / ExpFirst[i];
}
if (ExpSecond[i])
{
result += (SecondOriginal[i] - ExpSecond[i]) * (SecondOriginal[i] - ExpSecond[i]) / ExpSecond[i];
}
}
// release mem
double PValue;
if (Degree == 1)
PValue = 1.0;
else {
Degree--;
PValue = chisqr(Degree, result);
}
if (PValue < 0) PValue = PValue * (-1);
/*
if (PValue < 0.01) {
for (unsigned index = 0; index < 30; index++) {
std::cout << FirstOriginal[index] << " ";
}
std::cout << std::endl;
for (unsigned index = 0; index < 30; index++) {
std::cout << SecondOriginal[index] << " ";
}
std::cout << std::endl;
//std::cout << result << "\t" << Degree << "\t" << PValue << std::endl;
for (unsigned index = 0; index < 30; index++) {
std::cout << ExpFirst[index] << " ";
}
std::cout << std::endl;
for (unsigned index = 0; index < 30; index++) {
std::cout << ExpSecond[index] << " ";
}
std::cout << std::endl;
std::cout << result << "\t" << Degree << "\t" << PValue << std::endl;
}
*/
delete [] ExpFirst;
delete [] ExpSecond;
delete [] SumBoth;
return PValue;
}
int main() {
double Y_freq = 0.0;
double Y_serial_two = 0.0;
double Y_serial_three = 0.0;
// p-value parameters
double expected_freq = n_input/(2*4096); //50% chance of occurring for each sample
double expected_serial_two = n_input/(2*4*2048); //25% chance of occurrence every 2 samples
double expected_serial_three = n_input/(3*8*2048); //12.5% chance of occurrence every 3 samples
init_platform();
//Setup the freq serial hw platform
int status = XFreq_serial_init(&FreqSerial);
if (status != XST_SUCCESS) {
print("Freq Serial peripheral setup failed\n\r");
exit(-1);
}
//----------------//
//---START TEST---//
//----------------//
//set the input parameters of the HLS block
XFreq_serial_Set_seed_V(&FreqSerial, seed_input);
XFreq_serial_Set_n_V(&FreqSerial, n_input);
XFreq_serial_Set_offset_V(&FreqSerial, offset_input);
//check that suite is ready
if (XFreq_serial_IsReady(&FreqSerial)){
printf("--------------------------------,--------------------------------\n");
printf("Sample Size, %llu \n\r", XFreq_serial_Get_n_V(&FreqSerial));
printf("Seed, %lu \n\r", XFreq_serial_Get_seed_V(&FreqSerial));
printf("Offset, %lu \n\r", XFreq_serial_Get_offset_V(&FreqSerial));
printf("--------------------------------,--------------------------------\n");
printf("Results ETA, %.2f, seconds\n\r",(double)(n_input/(COUNTS_PER_SECOND*0.3)));
}else{
print("!!!WARNING: Freq Serial peripheral is not ready! Exiting...\n\r");
exit(-1);
}
// Simple non-interrupt driven test
XFreq_serial_Start(&FreqSerial);
//start time measurement
XTime_GetTime(&tStart);
do{
//get freq test hardware specification information
freq_base_address_hw = XFreq_serial_Get_freqStream_V_BaseAddress(&FreqSerial);
freq_high_address_hw = XFreq_serial_Get_freqStream_V_HighAddress(&FreqSerial);
freq_total_bytes_hw = XFreq_serial_Get_freqStream_V_TotalBytes(&FreqSerial);
freq_bit_width_hw = XFreq_serial_Get_freqStream_V_BitWidth(&FreqSerial);
freq_depth_hw = XFreq_serial_Get_freqStream_V_Depth(&FreqSerial);
//get serial two-tuple test hardware specification information
serial_2_base_address_hw = XFreq_serial_Get_serialTwoStream_V_BaseAddress(&FreqSerial);
serial_2_high_address_hw = XFreq_serial_Get_serialTwoStream_V_HighAddress(&FreqSerial);
serial_2_total_bytes_hw = XFreq_serial_Get_serialTwoStream_V_TotalBytes(&FreqSerial);
serial_2_bit_width_hw = XFreq_serial_Get_serialTwoStream_V_BitWidth(&FreqSerial);
serial_2_depth_hw = XFreq_serial_Get_serialTwoStream_V_Depth(&FreqSerial);
//get serial three-tuple test hardware specification information
serial_3_base_address_hw = XFreq_serial_Get_serialThreeStream_V_BaseAddress(&FreqSerial);
serial_3_high_address_hw = XFreq_serial_Get_serialThreeStream_V_HighAddress(&FreqSerial);
serial_3_total_bytes_hw = XFreq_serial_Get_serialThreeStream_V_TotalBytes(&FreqSerial);
serial_3_bit_width_hw = XFreq_serial_Get_serialThreeStream_V_BitWidth(&FreqSerial);
serial_3_depth_hw = XFreq_serial_Get_serialThreeStream_V_Depth(&FreqSerial);
//read freq test values
freqchardebug_value = XFreq_serial_Read_freqStream_V_Bytes(&FreqSerial, 0, charDataAddress, 128);
freqintdebug_value = XFreq_serial_Read_freqStream_V_Words(&FreqSerial, 0, intDataAddress, 32);
//read serial two-tuple test values
serialtwochardebug_value = XFreq_serial_Read_serialTwoStream_V_Bytes(&FreqSerial, 0, charDataAddress+128, 512);
serialtwointdebug_value = XFreq_serial_Read_serialTwoStream_V_Words(&FreqSerial, 0, intDataAddress+32, 128);
//read serial three-tuple test values
serialthreechardebug_value = XFreq_serial_Read_serialThreeStream_V_Bytes(&FreqSerial, 0, charDataAddress+640, 512);
serialthreeintdebug_value = XFreq_serial_Read_serialThreeStream_V_Words(&FreqSerial, 0, intDataAddress+160, 128);
}while(!XFreq_serial_IsReady(&FreqSerial));
//get time measurement
XTime_GetTime(&tEnd);
//output time measurements
printf("Test completed in ,%.2f, us (,%.2f, seconds).\n", 1.0 * (tEnd - tStart) / (COUNTS_PER_SECOND/1000000), 1.0 * (tEnd - tStart) / (COUNTS_PER_SECOND));
//Xilinx time functions measure time in PS clock cycles, so conversion to PL clock rate is required
printf("PL clock cycles per sample:, %.2f \n", (1.0)*((2*(tEnd - tStart))/((n_input*6.66666687))));
if(debugValid){
//number of chi-squared categories
printf("Freq Char Debug Value: %d\n\r", freqchardebug_value);
printf("Serial 2 Char Debug Value: %d\n\r", serialtwochardebug_value);
printf("Serial 3 Char Debug Value: %d\n\r", serialthreechardebug_value);
printf("Freq Int Debug Value: %d\n\r", freqintdebug_value);
printf("Serial 2 Int Debug Value: %d\n\r", serialtwointdebug_value);
printf("Serial 3 Int Debug Value: %d\n\r", serialthreeintdebug_value);
//hardware specification information
printf("Freq Base Address: %d\n\r", freq_base_address_hw);
printf("Freq High Address: %d\n\r", freq_high_address_hw);
printf("Freq Total Bytes: %d\n\r", freq_total_bytes_hw);
printf("Freq Bit Width: %d\n\r", freq_bit_width_hw);
printf("Freq Depth: %d\n\r", freq_depth_hw);
printf("Serial 2 Base Address: %d\n\r", serial_2_base_address_hw);
printf("Serial 2 High Address: %d\n\r", serial_2_high_address_hw);
printf("Serial 2 Total Bytes: %d\n\r", serial_2_total_bytes_hw);
printf("Serial 2 Bit Width: %d\n\r", serial_2_bit_width_hw);
printf("Serial 2 Depth: %d\n\r", serial_2_depth_hw);
printf("Serial 3 Base Address: %d\n\r", serial_3_base_address_hw);
printf("Serial 3 High Address: %d\n\r", serial_3_high_address_hw);
printf("Serial 3 Total Bytes: %d\n\r", serial_3_total_bytes_hw);
printf("Serial 3 Bit Width: %d\n\r", serial_3_bit_width_hw);
printf("Serial 3 Depth: %d\n\r", serial_3_depth_hw);
}
cleanup_platform();
//read previous test values
//read freq test values
freqchardebug_value = XFreq_serial_Read_freqStream_V_Bytes(&FreqSerial, 0, charDataAddress, 128);
freqintdebug_value = XFreq_serial_Read_freqStream_V_Words(&FreqSerial, 0, intDataAddress, 32);
//read serial two-tuple test values
serialtwochardebug_value = XFreq_serial_Read_serialTwoStream_V_Bytes(&FreqSerial, 0, charDataAddress+128, 512);
serialtwointdebug_value = XFreq_serial_Read_serialTwoStream_V_Words(&FreqSerial, 0, intDataAddress+32, 128);
//read serial three-tuple test values
serialthreechardebug_value = XFreq_serial_Read_serialThreeStream_V_Bytes(&FreqSerial, 0, charDataAddress+640, 512);
serialthreeintdebug_value = XFreq_serial_Read_serialThreeStream_V_Words(&FreqSerial, 0, intDataAddress+160, 128);
//output previous test parameters and results
//Histogram Decompression
//serial two-tuple test decompression
for (int i = 0; i<96; i++){
serial_two_decompressed[i+i/3] = (unsigned long int) *(intDataAddress + 32 + i);
}
for (int i = 0; i<32; i++){
serial_two_decompressed[i * 4 + 3] = (expected_serial_two * 4)
- (serial_two_decompressed[i * 4])
- (serial_two_decompressed[i * 4 + 1])
- (serial_two_decompressed[i * 4 + 2]);
}
//serial three-tuple test decompression
for (int i = 0; i < 112; i++) {
serial_three_decompressed[i + (i / 7)] = (unsigned long int) *(intDataAddress + 160 + i);
}
for (int i = 0; i < 16; i++) {
serial_three_decompressed[i * 8 + 7] = (expected_serial_three * 8)
- (serial_three_decompressed[i * 8])
- (serial_three_decompressed[i * 8 + 1])
- (serial_three_decompressed[i * 8 + 2])
- (serial_three_decompressed[i * 8 + 3])
- (serial_three_decompressed[i * 8 + 4])
- (serial_three_decompressed[i * 8 + 5])
- (serial_three_decompressed[i * 8 + 6]);
}
//report previous test histograms
printf("--------------------------------,--------------------------------\n");
printf("Frequency Histogram,");
for (int i = 0; i<32; i++){
printf("%lu,", (unsigned long int) *(intDataAddress + i));
}
printf("\n");
printf("Serial 2-Tuple Histogram,");
for (int i = 0; i<128; i++){
printf("%lu,", serial_two_decompressed[i]);
}
printf("\n");
printf("Serial 3-Tuple Histogram,");
for (int i = 0; i<128; i++){
printf("%lu,", serial_three_decompressed[i]);
}
printf("\n");
printf("--------------------------------,--------------------------------\n");
printf("Test, Y\n");
printf("--------------------------------,--------------------------------\n");
// Y-value computations
for(int i=0; i<32; i++){
Y_freq += (((unsigned long int) *(intDataAddress + i)-expected_freq)*((unsigned long int) *(intDataAddress + i)-expected_freq))/expected_freq;
}
for(int i=0; i<128; i++){
Y_serial_two += ((serial_two_decompressed[i]-expected_serial_two)*(serial_two_decompressed[i]-expected_serial_two))/expected_serial_two;
}
for(int i=0; i<128; i++){
Y_serial_three += ((serial_three_decompressed[i]-expected_serial_three)*(serial_three_decompressed[i]-expected_serial_three))/expected_serial_three;
}
// p-value computations
p_val_freq = chisqr(32, Y_freq); //degrees of freedom for frequency: 32-1
p_val_serial_two = chisqr(96, Y_serial_two); //degrees of freedom for serial: 128-1
p_val_serial_three = chisqr(112, Y_serial_three); //degrees of freedom for serial: 128-1
printf("--------------------------------,--------------------------------\n");
printf("Test, p-value\n");
printf("--------------------------------,--------------------------------\n");
printf("Frequency Test, %g\n", p_val_freq);
printf("Serial 2-Tuple Test, %g\n", p_val_serial_two);
printf("Serial 3-Tuple Test, %g\n", p_val_serial_three);
printf("--------------------------------,--------------------------------\n");
return 0;
}
