Removing unnecessary 512MB host-side allocation in favor of a properl…

…y-sized result buffer. This was an artifact left over from earlier dev that should not have been there.

src/gpuhash.cu

@@ -64,9 +64,8 @@ int GPUHasher::Initialize() {
     return -1;
   }
 
-#define N_RESULTS 32768
   /* Results holds any maybe-colliding keys */
-  error = cudaMalloc((void **)&dev_results, sizeof(uint64_t)*N_RESULTS);
+  error = cudaMalloc((void **)&dev_results, sizeof(uint64_t)*GPUHasher::N_RESULTS);
   if (error != cudaSuccess) {
     fprintf(stderr, "Could not malloc dev_data (%d)\n", error);
     exit(-1);
@@ -216,7 +215,7 @@ void filter_and_rewrite_sha512_kernel(__restrict__ uint64_t *dev_hashes, const _
 
     if (myword && is_in_filter_twice(dev_countbits, (myword>>18))) {
       myword = ((myword & (~(((1ULL<<26) - 1)))) | (spot*8+i));
-      uint32_t result_slot = atomicInc((uint32_t *)dev_results, N_RESULTS);
+      uint32_t result_slot = atomicInc((uint32_t *)dev_results, GPUHasher::N_RESULTS);
       dev_results[result_slot+1] = myword;
     }
   }

src/gpuhash.h

@@ -4,6 +4,9 @@ class GPUHasher {
   int Initialize();
   int ComputeHashes(uint64_t data[16], uint64_t H[8]);
   ~GPUHasher();
+
+  static const int N_RESULTS = 32768;
+
  private:
   int device_id;
   uint64_t *dev_data;

src/main_poolminer.cpp

@@ -22,8 +22,8 @@
 #endif
 
 #define VERSION_MAJOR 0
-#define VERSION_MINOR 7
-#define VERSION_EXT "RC2 <experimental>"
+#define VERSION_MINOR 8
+#define VERSION_EXT "GPU0.2 <experimental>"
 
 #define MAX_THREADS 64
 
@@ -171,13 +171,13 @@ class CWorkerThread { // worker=miner
   }
 
   void run() {
-    std::cout << "[WORKER" << _id << "] Hello, World!" << std::endl;
+    std::cout << "[WORKER" << _id << "] starting" << std::endl;
 
     /* Ensure that thread is pinned to its allocation */
-    _hashblock = (uint64_t *)malloc(sizeof(uint64_t) * (1<<26));
+    _hashblock = (uint64_t *)malloc(sizeof(uint64_t) * GPUHasher::N_RESULTS);
     _gpu = new GPUHasher(gpu_device_id);
     _gpu->Initialize();
- 
+
 #ifndef MAP_HUGETLB
     _collisionMap = (uint32_t*)malloc(sizeof(uint32_t)*(1 << COLLISION_TABLE_BITS));
 #else