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-rw-r--r--src/diffraction-gpu.c208
1 files changed, 96 insertions, 112 deletions
diff --git a/src/diffraction-gpu.c b/src/diffraction-gpu.c
index dd382ede..2f4fee77 100644
--- a/src/diffraction-gpu.c
+++ b/src/diffraction-gpu.c
@@ -3,19 +3,27 @@
*
* Calculate diffraction patterns by Fourier methods (GPU version)
*
- * (c) 2006-2010 Thomas White <taw@physics.org>
+ * (c) 2006-2011 Thomas White <taw@physics.org>
*
* Part of CrystFEL - crystallography with a FEL
*
*/
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <complex.h>
+
+#ifdef HAVE_CL_CL_H
+#include <CL/cl.h>
+#else
#include <cl.h>
+#endif
#include "image.h"
#include "utils.h"
@@ -107,6 +115,50 @@ static void check_sinc_lut(struct gpu_context *gctx, int n)
}
+static int sfloat(struct gpu_context *gctx, int idx, float val)
+{
+ cl_int err;
+ err = clSetKernelArg(gctx->kern, idx, sizeof(cl_float), &val);
+ if ( err != CL_SUCCESS ) {
+ ERROR("Couldn't set kernel argument %i: %s\n",
+ idx, clError(err));
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int setint(struct gpu_context *gctx, int idx, int val)
+{
+ cl_int err;
+
+ err = clSetKernelArg(gctx->kern, idx, sizeof(cl_int), &val);
+ if ( err != CL_SUCCESS ) {
+ ERROR("Couldn't set kernel argument %i: %s\n",
+ idx, clError(err));
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int setmem(struct gpu_context *gctx, int idx, cl_mem val)
+{
+ cl_int err;
+
+ err = clSetKernelArg(gctx->kern, idx, sizeof(cl_mem), &val);
+ if ( err != CL_SUCCESS ) {
+ ERROR("Couldn't set kernel argument %i: %s\n",
+ idx, clError(err));
+ return 1;
+ }
+
+ return 0;
+}
+
+
void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
int na, int nb, int nc, UnitCell *ucell)
{
@@ -124,6 +176,10 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
cl_int4 ncells;
const int sampling = SAMPLING;
cl_float bwstep;
+ int n_inf = 0;
+ int n_neg = 0;
+ int n_nan = 0;
+
if ( gctx == NULL ) {
ERROR("GPU setup failed.\n");
@@ -150,82 +206,34 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
check_sinc_lut(gctx, nb);
check_sinc_lut(gctx, nc);
- err = clSetKernelArg(gctx->kern, 0, sizeof(cl_mem), &gctx->diff);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 0: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 1, sizeof(cl_mem), &gctx->tt);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 1: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 2, sizeof(cl_float), &klow);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 2: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 3, sizeof(cl_int), &image->width);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 3: %s\n", clError(err));
- return;
- }
+ if ( setmem(gctx, 0, gctx->diff) ) return;
+ if ( setmem(gctx, 1, gctx->tt) ) return;
+ if ( setmem(gctx, 9, gctx->intensities) ) return;
+ if ( setmem(gctx, 15, gctx->sinc_luts[na-1]) ) return;
+ if ( setmem(gctx, 16, gctx->sinc_luts[nb-1]) ) return;
+ if ( setmem(gctx, 17, gctx->sinc_luts[nc-1]) ) return;
+ if ( setmem(gctx, 18, gctx->flags) ) return;
+
+ /* Unit cell */
clSetKernelArg(gctx->kern, 8, sizeof(cl_float16), &cell);
if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 8: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 9, sizeof(cl_mem), &gctx->intensities);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 9: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 12, sizeof(cl_int), &sampling);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 12: %s\n", clError(err));
+ ERROR("Couldn't set unit cell: %s\n", clError(err));
return;
}
+
/* Local memory for reduction */
clSetKernelArg(gctx->kern, 13,
BWSAMPLING*SAMPLING*SAMPLING*sizeof(cl_float), NULL);
if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 13: %s\n", clError(err));
- return;
- }
- /* Bandwidth sampling step */
- clSetKernelArg(gctx->kern, 14, sizeof(cl_float), &bwstep);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 14: %s\n", clError(err));
- return;
- }
-
- /* LUT in 'a' direction */
- clSetKernelArg(gctx->kern, 15, sizeof(cl_mem), &gctx->sinc_luts[na-1]);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 15: %s\n", clError(err));
+ ERROR("Couldn't set local memory: %s\n", clError(err));
return;
}
- /* LUT in 'b' direction */
- clSetKernelArg(gctx->kern, 16, sizeof(cl_mem), &gctx->sinc_luts[nb-1]);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 16: %s\n", clError(err));
- return;
- }
- /* LUT in 'c' direction */
- clSetKernelArg(gctx->kern, 17, sizeof(cl_mem), &gctx->sinc_luts[nc-1]);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 17: %s\n", clError(err));
- return;
- }
-
- /* Flag array */
- clSetKernelArg(gctx->kern, 18, sizeof(cl_mem), &gctx->flags);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set flag array: %s\n", clError(err));
- return;
- }
+ if ( sfloat(gctx, 2, klow) ) return;
+ if ( setint(gctx, 3, image->width) ) return;
+ if ( setint(gctx, 12, sampling) ) return;
+ if ( sfloat(gctx, 14, bwstep) ) return;
/* Iterate over panels */
event = malloc(image->det->n_panels * sizeof(cl_event));
@@ -236,48 +244,24 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
/* In a future version of OpenCL, this could be done
* with a global work offset. But not yet... */
- dims[0] = 1+image->det->panels[0].max_x-image->det->panels[0].min_x;
- dims[1] = 1+image->det->panels[0].max_y-image->det->panels[0].min_y;
+ dims[0] = 1+image->det->panels[p].max_fs
+ -image->det->panels[p].min_fs;
+ dims[1] = 1+image->det->panels[p].max_ss
+ -image->det->panels[p].min_ss;
dims[0] *= SAMPLING;
dims[1] *= SAMPLING;
dims[2] = BWSAMPLING;
- clSetKernelArg(gctx->kern, 4, sizeof(cl_float),
- &image->det->panels[p].cx);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 4: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 5, sizeof(cl_float),
- &image->det->panels[p].cy);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 5: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 6, sizeof(cl_float),
- &image->det->panels[p].res);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 6: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 7, sizeof(cl_float),
- &image->det->panels[p].clen);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 7: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 10, sizeof(cl_int),
- &image->det->panels[p].min_x);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 10: %s\n", clError(err));
- return;
- }
- clSetKernelArg(gctx->kern, 11, sizeof(cl_int),
- &image->det->panels[p].min_y);
- if ( err != CL_SUCCESS ) {
- ERROR("Couldn't set arg 11: %s\n", clError(err));
- return;
- }
+ if ( sfloat(gctx, 4, image->det->panels[p].cnx) ) return;
+ if ( sfloat(gctx, 5, image->det->panels[p].cny) ) return;
+ if ( sfloat(gctx, 6, image->det->panels[p].res) ) return;
+ if ( sfloat(gctx, 7, image->det->panels[p].clen) ) return;
+ if ( setint(gctx, 10, image->det->panels[p].min_fs) ) return;
+ if ( setint(gctx, 11, image->det->panels[p].min_ss) ) return;
+ if ( sfloat(gctx, 19, image->det->panels[p].fsx) ) return;
+ if ( sfloat(gctx, 19, image->det->panels[p].fsy) ) return;
+ if ( sfloat(gctx, 20, image->det->panels[p].ssx) ) return;
+ if ( sfloat(gctx, 21, image->det->panels[p].ssy) ) return;
err = clEnqueueNDRangeKernel(gctx->cq, gctx->kern, 3, NULL,
dims, ldims, 0, NULL, &event[p]);
@@ -314,15 +298,9 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
float val, tt;
val = diff_ptr[x + image->width*y];
- if ( isinf(val) ) {
- ERROR("Extracting infinity at %i,%i\n", x, y);
- }
- if ( val < 0.0 ) {
- ERROR("Extracting negative at %i,%i\n", x, y);
- }
- if ( isnan(val) ) {
- ERROR("Extracting NaN at %i,%i\n", x, y);
- }
+ if ( isinf(val) ) n_inf++;
+ if ( val < 0.0 ) n_neg++;
+ if ( isnan(val) ) n_nan++;
tt = tt_ptr[x + image->width*y];
image->data[x + image->width*y] = val;
@@ -331,6 +309,12 @@ void get_diffraction_gpu(struct gpu_context *gctx, struct image *image,
}
}
+ if ( n_neg + n_inf + n_nan ) {
+ ERROR("WARNING: The GPU calculation produced %i negative"
+ " values, %i infinities and %i NaNs.\n",
+ n_neg, n_inf, n_nan);
+ }
+
clEnqueueUnmapMemObject(gctx->cq, gctx->diff, diff_ptr, 0, NULL, NULL);
clEnqueueUnmapMemObject(gctx->cq, gctx->tt, tt_ptr, 0, NULL, NULL);
}
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