From d9f1b0b16edeb59281355a855e18a8be343fc33c Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 08 Aug 2014 19:04:15 +0000
Subject: [PATCH] probably how maxpool layers should be
---
src/opencl.c | 46 +++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 45 insertions(+), 1 deletions(-)
diff --git a/src/opencl.c b/src/opencl.c
index 08bc8a7..8f9edd3 100644
--- a/src/opencl.c
+++ b/src/opencl.c
@@ -1,3 +1,4 @@
+#ifdef GPU
#include "opencl.h"
#include <stdio.h>
#include <stdlib.h>
@@ -12,6 +13,7 @@
{
if (info.error != CL_SUCCESS) {
printf("\n Error number %d", info.error);
+ exit(1);
}
}
@@ -30,7 +32,8 @@
if(num_devices > MAX_DEVICES) num_devices = MAX_DEVICES;
int index = getpid()%num_devices;
printf("%d rand, %d devices, %d index\n", getpid(), num_devices, index);
- info.device = devices[index];
+ //info.device = devices[index];
+ info.device = devices[1];
fprintf(stderr, "Found %d device(s)\n", num_devices);
check_error(info);
@@ -66,6 +69,7 @@
clGetProgramBuildInfo( prog, info.device, CL_PROGRAM_BUILD_LOG, 4096, build_c, 0);
fprintf(stderr, "Build Log for %s program:\n%s\n", filename, build_c);
}
+ check_error(info);
return prog;
}
@@ -85,4 +89,44 @@
return kernel;
}
+void cl_read_array(cl_mem mem, float *x, int n)
+{
+ cl_setup();
+ clEnqueueReadBuffer(cl.queue, mem, CL_TRUE, 0, sizeof(float)*n,x,0,0,0);
+ check_error(cl);
+}
+void cl_write_array(cl_mem mem, float *x, int n)
+{
+ cl_setup();
+ clEnqueueWriteBuffer(cl.queue, mem, CL_TRUE, 0,sizeof(float)*n,x,0,0,0);
+ check_error(cl);
+}
+
+void cl_copy_array(cl_mem src, cl_mem dst, int n)
+{
+ cl_setup();
+ clEnqueueCopyBuffer(cl.queue, src, dst, 0, 0, sizeof(float)*n,0,0,0);
+ check_error(cl);
+}
+
+cl_mem cl_sub_array(cl_mem src, int offset, int size)
+{
+ cl_buffer_region r;
+ r.origin = offset*sizeof(float);
+ r.size = size*sizeof(float);
+ cl_mem sub = clCreateSubBuffer(src, CL_MEM_USE_HOST_PTR, CL_BUFFER_CREATE_TYPE_REGION, &r, 0);
+ return sub;
+}
+
+cl_mem cl_make_array(float *x, int n)
+{
+ cl_setup();
+ cl_mem mem = clCreateBuffer(cl.context,
+ CL_MEM_READ_WRITE|CL_MEM_COPY_HOST_PTR,
+ sizeof(float)*n, x, &cl.error);
+ check_error(cl);
+ return mem;
+}
+
+#endif
--
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