From 7add11150954879dae4daad4e4da549b4b13bca6 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Sat, 09 Aug 2014 15:16:37 +0000
Subject: [PATCH] maxpool fixed, good on mnist
---
src/opencl.c | 29 ++++++++++++++++++++++++++++-
1 files changed, 28 insertions(+), 1 deletions(-)
diff --git a/src/opencl.c b/src/opencl.c
index d06c75f..8f9edd3 100644
--- a/src/opencl.c
+++ b/src/opencl.c
@@ -32,7 +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);
@@ -102,4 +103,30 @@
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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