From a8bf7cff08eae034f1cc50b3a57cf157592097aa Mon Sep 17 00:00:00 2001
From: samr7 <samr7@cs.washington.edu>
Date: Sun, 17 Jul 2011 17:20:29 -0700
Subject: [PATCH] Use two output buffers so that the GPU doesn't trample on the
 hash list while the CPU is checking for matches.

---
 oclvanitygen.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/oclvanitygen.c b/oclvanitygen.c
index 80fd355..0e53ce0 100644
--- a/oclvanitygen.c
+++ b/oclvanitygen.c
@@ -489,7 +489,7 @@ vg_opencl_loop(vg_context_t *vcp, cl_device_id did, int worksize)
 	int i;
 	int batchsize, round;
 
-	const BN_ULONG rekey_max = 20000000;
+	const BN_ULONG rekey_max = 100000000;
 	BN_ULONG npoints, rekey_at;
 
 	EC_KEY *pkey = NULL;
@@ -523,7 +523,7 @@ vg_opencl_loop(vg_context_t *vcp, cl_device_id did, int worksize)
 	batchsize = 256;
 	if (!worksize)
 		worksize = 512;
-	nslots = 1;
+	nslots = 2;
 	slot = 0;
 
 	ppbase = (EC_POINT **) malloc((batchsize + worksize) *