From 7bc0007c0dac14528409d33ca1a28491a2568d12 Mon Sep 17 00:00:00 2001 From: Nick Date: Tue, 3 Sep 2019 10:21:51 -0400 Subject: get rid of more UB --- src/abstract_hardware_model.h | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) (limited to 'src/abstract_hardware_model.h') diff --git a/src/abstract_hardware_model.h b/src/abstract_hardware_model.h index fdc4dc3..29e4a30 100644 --- a/src/abstract_hardware_model.h +++ b/src/abstract_hardware_model.h @@ -442,19 +442,25 @@ protected: class gpgpu_sim * m_gpu; }; -#define GLOBAL_HEAP_START 0xC0000000 - // start allocating from this address (lower values used for allocating globals in .ptx file) -#define SHARED_MEM_SIZE_MAX (96*1024) -#define LOCAL_MEM_SIZE_MAX (16*1024) -#define MAX_STREAMING_MULTIPROCESSORS 80 //scale it to Volta -#define MAX_THREAD_PER_SM 2048 -#define MAX_WARP_PER_SM 64 -#define TOTAL_LOCAL_MEM_PER_SM (MAX_THREAD_PER_SM*LOCAL_MEM_SIZE_MAX) -#define TOTAL_SHARED_MEM (MAX_STREAMING_MULTIPROCESSORS*SHARED_MEM_SIZE_MAX) -#define TOTAL_LOCAL_MEM (MAX_STREAMING_MULTIPROCESSORS*MAX_THREAD_PER_SM*LOCAL_MEM_SIZE_MAX) -#define SHARED_GENERIC_START (GLOBAL_HEAP_START-TOTAL_SHARED_MEM) -#define LOCAL_GENERIC_START (SHARED_GENERIC_START-TOTAL_LOCAL_MEM) -#define STATIC_ALLOC_LIMIT (GLOBAL_HEAP_START - (TOTAL_LOCAL_MEM+TOTAL_SHARED_MEM)) +// Let's just upgrade to C++11 so we can use constexpr here... +// start allocating from this address (lower values used for allocating globals in .ptx file) +const unsigned long long GLOBAL_HEAP_START = 0xC0000000; +// Volta max shmem size is 96kB +const unsigned long long SHARED_MEM_SIZE_MAX = 96 * (1 << 10); +// Volta max local mem is 16kB +const unsigned long long LOCAL_MEM_SIZE_MAX = 1 << 14; +// Volta Titan V has 80 SMs +const unsigned MAX_STREAMING_MULTIPROCESSORS = 80; +// Max 2048 threads / SM +const unsigned MAX_THREAD_PER_SM = 1 << 11; +// MAX 64 warps / SM +const unsigned MAX_WARP_PER_SM = 1 << 6; +const unsigned long long TOTAL_LOCAL_MEM_PER_SM = MAX_THREAD_PER_SM * LOCAL_MEM_SIZE_MAX; +const unsigned long long TOTAL_SHARED_MEM = MAX_STREAMING_MULTIPROCESSORS * SHARED_MEM_SIZE_MAX; +const unsigned long long TOTAL_LOCAL_MEM = MAX_STREAMING_MULTIPROCESSORS * MAX_THREAD_PER_SM * LOCAL_MEM_SIZE_MAX; +const unsigned long long SHARED_GENERIC_START = GLOBAL_HEAP_START - TOTAL_SHARED_MEM; +const unsigned long long LOCAL_GENERIC_START = SHARED_GENERIC_START - TOTAL_LOCAL_MEM; +const unsigned long long STATIC_ALLOC_LIMIT = GLOBAL_HEAP_START - (TOTAL_LOCAL_MEM + TOTAL_SHARED_MEM); #if !defined(__CUDA_RUNTIME_API_H__) -- cgit v1.3