BLOCK_SIZE
#define BLOCK_SIZE 512
#define BLOCK_SIZE 64
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
#define BLOCK_SIZE (1<<BLOCK_SIZE_BITS)
#define BLOCK_SIZE 4096
enum { TRIALS = 1000, BLOCKS = 128, BLOCK_SIZE = 64 };