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Commit 24fb19fa authored by Andrey Filippov's avatar Andrey Filippov
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co-debugging code with C++ for GPU

parent 6bcd9932
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src/main/java/DttRad2.java
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......@@ -1221,14 +1221,14 @@ public class DttRad2 {
private double [] _dctii_nrecurs2(double[] x){
// int n = x.length; == 2
double [] y= {x[0]+x[1],x[0]-x[1]};
System.out.println(String.format("_dctii_nrecurs2: x={%8f,%8f}",x[0],x[1]));
System.out.println(String.format("_dctii_nrecurs2: y={%8f,%8f}",y[0],y[1]));
return y;
}
private double [] _dctii_nrecurs4(double[] x){
// int n = x.length; // 4
// int n1 = n >> 1; // 2
double [] u0 = new double [2];
double [] u1 = new double [2];
for (int j = 0; j < 2; j++){
......@@ -1242,6 +1242,12 @@ public class DttRad2 {
y[2*j] = v0[j];
y[2*j+1] = v1[j];
}
System.out.println(String.format("_dctii_nrecurs4: x={%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3]));
System.out.println(String.format("_dctii_nrecurs4: u0={%8f,%8f}, u1={%8f,%8f}",u0[0],u0[1],u1[0],u1[1]));
System.out.println(String.format("_dctii_nrecurs4: v0={%8f,%8f}, v1={%8f,%8f}",v0[0],v0[1],v1[0],v1[1]));
System.out.println(String.format("_dctii_nrecurs4: y={%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3]));
return y;
}
......@@ -1261,6 +1267,11 @@ public class DttRad2 {
y[2*j] = v0[j];
y[2*j+1] = v1[j];
}
System.out.println(String.format("_dctii_nrecurs8: x={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7]));
System.out.println(String.format("_dctii_nrecurs8: u0={%8f,%8f,%8f,%8f}, u1={%8f,%8f,%8f,%8f}",u0[0],u0[1],u0[2],u0[3],u1[0],u1[1],u1[2],u1[3]));
System.out.println(String.format("_dctii_nrecurs8: v0={%8f,%8f,%8f,%8f}, v1={%8f,%8f,%8f,%8f}",v0[0],v0[1],v0[2],v0[3],v1[0],v1[1],v1[2],v1[3]));
System.out.println(String.format("_dctii_nrecurs8: y={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7]));
return y;
}
......@@ -1269,14 +1280,13 @@ public class DttRad2 {
// int n = x.length; == 2
double [] y= {COSPI_1_8_SQRT2*x[0] + COSPI_3_8_SQRT2*x[1],
COSPI_3_8_SQRT2*x[0] - COSPI_1_8_SQRT2*x[1]};
System.out.println(String.format("_dctiv_nrecurs2: x={%8f,%8f}",x[0],x[1]));
System.out.println(String.format("_dctiv_nrecurs2: y={%8f,%8f}",y[0],y[1]));
return y;
}
private double [] _dctiv_nrecurs4(double[] x){
// int n = x.length; // 4
// int n1 = n >> 1; // 2
// int t = ilog2(n1)-1; // 0
double [] u0 = new double [2];
double [] u1 = new double [2];
for (int j = 0; j< 2; j++){
......@@ -1303,23 +1313,23 @@ public class DttRad2 {
y[2*j] = w0[j];
y[2*j+1] = w1[j];
}
System.out.println(String.format("_dctiv_nrecurs4: x={%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3]));
System.out.println(String.format("_dctiv_nrecurs4: u0={%8f,%8f}, u1={%8f,%8f}",u0[0],u0[1],u1[0],u1[1]));
System.out.println(String.format("_dctiv_nrecurs4: v0={%8f,%8f}, v1={%8f,%8f}",v0[0],v0[1],v1[0],v1[1]));
System.out.println(String.format("_dctiv_nrecurs4: w0={%8f,%8f}, w1={%8f,%8f}",w0[0],w0[1],w1[0],w1[1]));
System.out.println(String.format("_dctiv_nrecurs4: y={%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3]));
return y;
}
private double [] _dctiv_nrecurs8(double[] x){
// int n = x.length; // 8
// int n1 = n >> 1; // 4
// int t = ilog2(n1)-1; // 1
double [] u0 = new double [4];
double [] u1 = new double [4];
// u = sqrt(2)*Tn(1) * x
for (int j = 0; j< 4; j++){
u0[j]= ( CN1[1][j] * x[j] + SN1[1][j] * x[7 - j]);
u1[j]= ( 1 - 2*(j & 1))*(-SN1[1][3-j] * x[3 - j] + CN1[1][3 - j] * x[4 + j]);
}
// double [] v0 = _dctii_recurs(u0);
// double [] v1 = _dctii_recurs(u1); //both cos-II
double [] v0 = _dctii_nrecurs4(u0);
double [] v1 = _dctii_nrecurs4(u1); //both cos-II
......@@ -1340,6 +1350,11 @@ public class DttRad2 {
y[2*j] = w0[j];
y[2*j+1] = w1[j];
}
System.out.println(String.format("_dctiv_nrecurs8: x={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7]));
System.out.println(String.format("_dctiv_nrecurs8: u0={%8f,%8f,%8f,%8f}, u1={%8f,%8f,%8f,%8f}",u0[0],u0[1],u0[2],u0[3],u1[0],u1[1],u1[2],u1[3]));
System.out.println(String.format("_dctiv_nrecurs8: v0={%8f,%8f,%8f,%8f}, v1={%8f,%8f,%8f,%8f}",v0[0],v0[1],v0[2],v0[3],v1[0],v1[1],v1[2],v1[3]));
System.out.println(String.format("_dctiv_nrecurs8: w0={%8f,%8f,%8f,%8f}, w1={%8f,%8f,%8f,%8f}",w0[0],w0[1],w0[2],w0[3],w1[0],w1[1],w1[2],w1[3]));
System.out.println(String.format("_dctiv_nrecurs8: y={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7]));
return y;
}
......@@ -1386,6 +1401,37 @@ public class DttRad2 {
double v03= COSPI_3_8_SQRT2 * w10 - COSPI_1_8_SQRT2 * w11;
// _dctiv_nrecurs4(u10, u11, u12, u13, &v10, &v11, &v12, &v13);
/*
double [] u0 = new double [2];
double [] u1 = new double [2];
for (int j = 0; j< 2; j++){
u0[j]= ( CN1[0][j] * x[j] + SN1[0][j] * x[3 - j]);
u1[j]= ( 1 - 2*(j & 1))*(-SN1[0][1-j] * x[1-j] + CN1[0][1-j] * x[2 + j]);
}
double [] v0 = _dctii_nrecurs2(u0);
double [] v1 = _dctii_nrecurs2(u1); //both cos-II
double [] w0 = new double [2];
double [] w1 = new double [2];
w0[0] = sqrt2 * v0[0];
w1[1] = sqrt2 * v1[0];
for (int j = 0; j< 2; j++){
int sgn = (1 - 2* (j & 1));
if (j > 0) w0[j] = v0[j] - sgn * v1[2 - j];
if (j < (1)) w1[j] = v0[j+1] - sgn * v1[2 - j -1];
}
double [] y = new double[4];
for (int j = 0; j< 2; j++){
y[2*j] = w0[j];
y[2*j+1] = w1[j];
}
*/
double w20= ( COSN1[0] * u10 + SINN1[0] * u13);
double w30= (-SINN1[1] * u11 + COSN1[1] * u12);
......@@ -1393,7 +1439,7 @@ public class DttRad2 {
double w31= -(-SINN1[0] * u10 + COSN1[0] * u13);
//u->t, v ->z, t0->w2, t1->w3
// double z00, z01, z10,z11;
// TODO: change w20<->w02
// _dctii_nrecurs2(u00, u01, &v00, &v01);
double z00= w20 + w21;
double z01= w20 - w21;
......@@ -1419,6 +1465,12 @@ public class DttRad2 {
y[6] = v03;
y[7] = v13;
System.out.println(String.format("_dctii_nrecurs8-gpu: x={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7]));
System.out.println(String.format("_dctii_nrecurs8-gpu: u0={%8f,%8f,%8f,%8f}, u1={%8f,%8f,%8f,%8f}",u00,u01,u02,u03,u10,u11,u12,u13));
System.out.println(String.format("_dctii_nrecurs8-gpu: v0={%8f,%8f,%8f,%8f}, v1={%8f,%8f,%8f,%8f}",v00,v01,v02,v03,v10,v11,v12,v13));
System.out.println(String.format("_dctii_nrecurs8-gpu: w0={%8f,%8f,%8f,%8f}, w1={%8f,%8f,%8f,%8f}",w00,w10,w20,w30,w01,w11,w21,w31));
System.out.println(String.format("_dctii_nrecurs8-gpu: y={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7]));
}
void _dctiv_nrecurs8( double [] x, double [] y) // x,y point to 8-element arrays each
......@@ -1430,36 +1482,47 @@ public class DttRad2 {
double u11= -(-SINN2[2] * x[2] + COSN2[2] * x[5]);
double u02= ( COSN2[2] * x[2] + SINN2[2] * x[5]);
double u12= -(-SINN2[1] * x[1] + COSN2[1] * x[6]);
double u12= (-SINN2[1] * x[1] + COSN2[1] * x[6]);
double u03= ( COSN2[3] * x[3] + SINN2[3] * x[4]);
double u13= -(-SINN2[0] * x[0] + COSN2[0] * x[7]);
// _dctii_nrecurs4(u00, u01, u02, u03, &v00, &v01, &v02, &v03);
double w00= u00 + u03;
double w10= u00 - u03;
// _dctii_nrecurs4(u00, u01, u02, u03, &v00, &v01, &v02, &v03); // ua - u inside first _dctii_nrecurs4, ub - inside second
double ua00= u00 + u03;
double ua10= u00 - u03;
double w01= u01 + u02;
double w11= u01 - u02;
double ua01= u01 + u02;
double ua11= u01 - u02;
double v00= w00 + w01;
double v02= w00 - w01;
double v01= COSPI_1_8_SQRT2*w10 + COSPI_3_8_SQRT2*w11;
double v03= COSPI_3_8_SQRT2*w10 - COSPI_1_8_SQRT2*w11;
double v00= ua00 + ua01;
double v02= ua00 - ua01;
double v01= COSPI_1_8_SQRT2 * ua10 + COSPI_3_8_SQRT2 * ua11;
double v03= COSPI_3_8_SQRT2 * ua10 - COSPI_1_8_SQRT2 * ua11;
// _dctii_nrecurs4(u10, u11, u12, u13, &v10, &v11, &v12, &v13);
double w20= u10 + u13; // t0x-> w2x, gt1x-> w3x
double w30= u10 - u13;
System.out.println(String.format("_dctiv_nrecurs8-gpu (_dctii_nrecurs4(x): x={%8f,%8f,%8f,%8f}",u10, u11, u12, u13));
double ub00= u10 + u13;
double ub10= u10 - u13;
double ub01= u11 + u12;
double ub11= u11 - u12;
System.out.println(String.format("_dctiv_nrecurs8-gpu: ub0={%8f,%8f}, ub1={%8f,%8f}",ub00,ub01,ub10,ub11));
double vb00= ub00 + ub01;
double vb01= ub00 - ub01;
double vb10= COSPI_1_8_SQRT2*ub10 + COSPI_3_8_SQRT2*ub11;
double vb11= COSPI_3_8_SQRT2*ub10 - COSPI_1_8_SQRT2*ub11;
double w21= u11 + u12;
double w31= u11 - u12;
System.out.println(String.format("_dctiv_nrecurs8-gpu: vb0={%8f,%8f}, vb1={%8f,%8f}",vb00,vb01,vb10,vb11));
double v10= w20 + w21;
double v12= w20 - w21;
double v11= COSPI_1_8_SQRT2*w30 + COSPI_3_8_SQRT2*w31;
double v13= COSPI_3_8_SQRT2*w30 - COSPI_1_8_SQRT2*w31;
double v10 = vb00;
double v11 = vb10;
double v12 = vb01;
double v13 = vb11;
System.out.println(String.format("_dctiv_nrecurs8-gpu: yb={%8f,%8f,%8f,%8f}",vb00, vb10, vb01, vb11));
// j == 0
y[0] = SQRT_2 * v00; // w0[0];
......@@ -1469,10 +1532,15 @@ public class DttRad2 {
y[3] = v02 + v12; // w1[1];
// j == 2
y[4] = v02 - v12; // w0[2];
y[5] = v02 + v12; // w1[2];
y[5] = v03 - v11; // w1[2]; - same as y[3]
// j == 3
y[6] = v03 + v11; // w0[3];
y[7] = SQRT_2 * v10; // w1[3];
System.out.println(String.format("_dctiv_nrecurs8-gpu: x={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7]));
System.out.println(String.format("_dctiv_nrecurs8-gpu: u0={%8f,%8f,%8f,%8f}, u1={%8f,%8f,%8f,%8f}",u00,u01,u02,u03,u10,u11,u12,u13));
System.out.println(String.format("_dctiv_nrecurs8-gpu: v0={%8f,%8f,%8f,%8f}, v1={%8f,%8f,%8f,%8f}",v00,v01,v02,v03,v10,v11,v12,v13));
// System.out.println(String.format("_dctiv_nrecurs8-gpu: w0={%8f,%8f,%8f,%8f}, w1={%8f,%8f,%8f,%8f}",w00,w10,w20,w30,w01,w11,w21,w31));
System.out.println(String.format("_dctiv_nrecurs8-gpu: y={%8f,%8f,%8f,%8f,%8f,%8f,%8f,%8f}",y[0],y[1],y[2],y[3],y[4],y[5],y[6],y[7]));
}
......
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