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Commit 28a66937 authored by lvs's avatar lvs
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SD correction: stepsize is updated after gradient calc

parent 7952ef60
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device/kernel_gradient.cl
View file @ 28a66937
......@@ -497,99 +497,6 @@ gradient_minimizer(
genotype[20] = 0.0f;
#endif
if (get_local_id(0) == 0) {
// Finding maximum of the absolute value for the three translation gradients
max_trans_grad = fmax(fabs(gradient[0]), fabs(gradient[1]));
max_trans_grad = fmax(max_trans_grad, fabs(gradient[2]));
// MAX_DEV_TRANSLATION needs to be expressed in grid size first
max_trans_stepsize = native_divide(native_divide(MAX_DEV_TRANSLATION, dockpars_grid_spacing), max_trans_grad);
// Finding maximum of the absolute value for the three rotation gradients
max_rota_grad = fmax(fabs(gradient[3]), fabs(gradient[4]));
max_rota_grad = fmax(max_rota_grad, fabs(gradient[5]));
// Note that MAX_DEV_ROTATION
// is already expressed within [0, 1]
max_rota_stepsize = native_divide(MAX_DEV_ROTATION, max_rota_grad);
}
// Copying torsions genes
for(uint i = get_local_id(0);
i < dockpars_num_of_genes-6;
i+= NUM_OF_THREADS_PER_BLOCK) {
torsions_gradient[i] = fabs(gradient[i+6]);
}
barrier(CLK_LOCAL_MEM_FENCE);
// Calculating maximum absolute torsional gene
// https://stackoverflow.com/questions/36465581/opencl-find-max-in-array
for (uint i=(dockpars_num_of_genes-6)/2; i>=1; i/=2){
if (get_local_id(0) < i) {
#if 0
#if defined (DEBUG_MINIMIZER)
printf("---====--- %u %u %10.10f %-0.10f\n", i, get_local_id(0), torsions_gradient[get_local_id(0)], torsions_gradient[get_local_id(0) + i]);
#endif
#endif
if (torsions_gradient[get_local_id(0)] < torsions_gradient[get_local_id(0) + i]) {
torsions_gradient[get_local_id(0)] = torsions_gradient[get_local_id(0) + i];
}
}
barrier(CLK_LOCAL_MEM_FENCE);
}
if (get_local_id(0) == 0) {
max_tors_grad = torsions_gradient[get_local_id(0)];
max_tors_stepsize = native_divide(MAX_DEV_TORSION, max_tors_grad);
}
barrier(CLK_LOCAL_MEM_FENCE);
if (get_local_id(0) == 0) {
// Calculating the maximum stepsize using previous three
max_stepsize = fmin(max_trans_stepsize, max_rota_stepsize);
max_stepsize = fmin(max_stepsize, max_tors_stepsize);
// Capping the stepsize
stepsize = fmin(stepsize, max_stepsize);
#if 1
#if defined (DEBUG_MINIMIZER)
// Enable it back if intermmediate details are needed
#if 1
for(uint i = 0; i < dockpars_num_of_genes; i++) {
if (i == 0) {
printf("\n%s\n", "----------------------------------------------------------");
printf("\n%s\n", "Before calculating gradients:");
printf("%13s %13s %5s %15s %20s\n", "gene_id", "gene", "|", "grad", " grad (devpy units)");
}
printf("%13u %13.6f %5s %15.6f %18.6f\n", i, genotype[i], "|", gradient[i], (i<3)? (gradient[i]/0.375f):(gradient[i]*180.0f/PI_FLOAT));
}
#endif
// Enable it back if intermmediate details are needed
# if 1
printf("\n");
printf("%20s %10.6f\n", "max_trans_grad: ", max_trans_grad);
printf("%20s %10.6f\n", "max_rota_grad: ", max_rota_grad);
printf("%20s %10.6f\n", "max_tors_grad: ", max_tors_grad);
#endif
printf("\n");
printf("%20s %10.6f\n", "max_trans_stepsize: ", max_trans_stepsize);
printf("%20s %10.6f\n", "max_rota_stepsize: " , max_rota_stepsize);
printf("%20s %10.6f\n", "max_tors_stepsize: " , max_tors_stepsize);
printf("\n");
printf("%20s %10.6f\n\n", "max_stepsize: ", max_stepsize);
printf("%20s %10.6f\n\n", "stepsize: ", stepsize);
#endif
#endif
}
// Calculating gradient
barrier(CLK_LOCAL_MEM_FENCE);
......@@ -692,6 +599,97 @@ gradient_minimizer(
}
#endif
#endif
if (get_local_id(0) == 0) {
// Finding maximum of the absolute value for the three translation gradients
max_trans_grad = fmax(fabs(gradient[0]), fabs(gradient[1]));
max_trans_grad = fmax(max_trans_grad, fabs(gradient[2]));
// MAX_DEV_TRANSLATION needs to be expressed in grid size first
max_trans_stepsize = native_divide(native_divide(MAX_DEV_TRANSLATION, dockpars_grid_spacing), max_trans_grad);
// Finding maximum of the absolute value for the three rotation gradients
max_rota_grad = fmax(fabs(gradient[3]), fabs(gradient[4]));
max_rota_grad = fmax(max_rota_grad, fabs(gradient[5]));
// Note that MAX_DEV_ROTATION is already expressed approprietly
max_rota_stepsize = native_divide(MAX_DEV_ROTATION, max_rota_grad);
}
// Copying torsions genes
for(uint i = get_local_id(0);
i < dockpars_num_of_genes-6;
i+= NUM_OF_THREADS_PER_BLOCK) {
torsions_gradient[i] = fabs(gradient[i+6]);
}
barrier(CLK_LOCAL_MEM_FENCE);
// Calculating maximum absolute torsional gene
// https://stackoverflow.com/questions/36465581/opencl-find-max-in-array
for (uint i=(dockpars_num_of_genes-6)/2; i>=1; i/=2){
if (get_local_id(0) < i) {
#if 0
#if defined (DEBUG_MINIMIZER)
printf("---====--- %u %u %10.10f %-0.10f\n", i, get_local_id(0), torsions_gradient[get_local_id(0)], torsions_gradient[get_local_id(0) + i]);
#endif
#endif
if (torsions_gradient[get_local_id(0)] < torsions_gradient[get_local_id(0) + i]) {
torsions_gradient[get_local_id(0)] = torsions_gradient[get_local_id(0) + i];
}
}
barrier(CLK_LOCAL_MEM_FENCE);
}
if (get_local_id(0) == 0) {
max_tors_grad = torsions_gradient[get_local_id(0)];
max_tors_stepsize = native_divide(MAX_DEV_TORSION, max_tors_grad);
}
barrier(CLK_LOCAL_MEM_FENCE);
if (get_local_id(0) == 0) {
// Calculating the maximum stepsize using previous three
max_stepsize = fmin(max_trans_stepsize, max_rota_stepsize);
max_stepsize = fmin(max_stepsize, max_tors_stepsize);
// Capping the stepsize
stepsize = fmin(stepsize, max_stepsize);
#if 1
#if defined (DEBUG_MINIMIZER)
// Enable it back if intermmediate details are needed
#if 1
for(uint i = 0; i < dockpars_num_of_genes; i++) {
if (i == 0) {
printf("\n%s\n", "----------------------------------------------------------");
printf("\n%s\n", "Before calculating gradients:");
printf("%13s %13s %5s %15s %20s\n", "gene_id", "gene", "|", "grad", " grad (devpy units)");
}
printf("%13u %13.6f %5s %15.6f %18.6f\n", i, genotype[i], "|", gradient[i], (i<3)? (gradient[i]/0.375f):(gradient[i]*180.0f/PI_FLOAT));
}
#endif
// Enable it back if intermmediate details are needed
# if 1
printf("\n");
printf("%20s %10.6f\n", "max_trans_grad: ", max_trans_grad);
printf("%20s %10.6f\n", "max_rota_grad: ", max_rota_grad);
printf("%20s %10.6f\n", "max_tors_grad: ", max_tors_grad);
#endif
printf("\n");
printf("%20s %10.6f\n", "max_trans_stepsize: ", max_trans_stepsize);
printf("%20s %10.6f\n", "max_rota_stepsize: " , max_rota_stepsize);
printf("%20s %10.6f\n", "max_tors_stepsize: " , max_tors_stepsize);
printf("\n");
printf("%20s %10.6f\n\n", "max_stepsize: ", max_stepsize);
printf("%20s %10.6f\n\n", "stepsize: ", stepsize);
#endif
#endif
}
for(uint i = get_local_id(0); i < dockpars_num_of_genes; i+= NUM_OF_THREADS_PER_BLOCK) {
// Taking step
......
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