diff options
Diffstat (limited to 'src/abstract_hardware_model.cc')
| -rw-r--r-- | src/abstract_hardware_model.cc | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/abstract_hardware_model.cc b/src/abstract_hardware_model.cc index 19c3091..1a06001 100644 --- a/src/abstract_hardware_model.cc +++ b/src/abstract_hardware_model.cc @@ -313,9 +313,19 @@ void warp_inst_t::memory_coalescing_arch_13( bool is_write, mem_access_type acce if( !active(thread) ) continue; - // local memory can only be accessed in 4B chunks by one thread - unsigned data_size_coales = (space.get_type() == local_space || space.get_type() == param_space_local ) ? 4 : data_size; - unsigned num_accesses = (space.get_type() == local_space || space.get_type() == param_space_local ) ? data_size/4 : 1; + unsigned data_size_coales = data_size; + unsigned num_accesses = 1; + + if( space.get_type() == local_space || space.get_type() == param_space_local ) { + // Local memory accesses >4B were split into 4B chunks + if(data_size >= 4) { + data_size_coales = 4; + num_accesses = data_size/4; + } + // Otherwise keep the same data_size for sub-4B access to local memory + } + + assert(num_accesses <= MAX_ACCESSES_PER_INSN_PER_THREAD); for(unsigned access=0; access<num_accesses; access++) { |