diff options
Diffstat (limited to 'configs/GTX480')
| -rw-r--r-- | configs/GTX480/gpgpusim.config | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/configs/GTX480/gpgpusim.config b/configs/GTX480/gpgpusim.config index 62dd078..a1d6517 100644 --- a/configs/GTX480/gpgpusim.config +++ b/configs/GTX480/gpgpusim.config @@ -85,8 +85,13 @@ # dram model config -gpgpu_dram_scheduler 1 +# The DRAM return queue and the scheduler queue together should provide buffer +# to sustain the memory level parallelism to tolerate DRAM latency +# To allow 100% DRAM utility, there should at least be enough buffer to sustain +# the minimum DRAM latency (100 core cycles). I.e. +# Total buffer space required = 100 x 924MHz / 700MHz = 132 -gpgpu_frfcfs_dram_sched_queue_size 16 --gpgpu_dram_return_queue_size 16 +-gpgpu_dram_return_queue_size 116 # for Fermi, bus width is 384bits, this is 8 bytes (4 bytes at each DRAM chip) per memory partition -gpgpu_n_mem_per_ctrlr 2 |