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Diffstat (limited to 'doc/tuning.md')
| -rw-r--r-- | doc/tuning.md | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/doc/tuning.md b/doc/tuning.md index 806f059..6459235 100644 --- a/doc/tuning.md +++ b/doc/tuning.md @@ -53,15 +53,16 @@ In the most cases a `worksize` of `16` or `8` is optimal. ### Add More GPUs -To add a new GPU you need to add a new config set to `gpu_threads_conf` and increase `gpu_thread_num"` to the number of gpus (entries in `gpu_threads_conf`). -`index` is the number of the gpu. +To add a new GPU you need to add a new config set to `gpu_threads_conf`. `index` is the OpenCL index of the gpu. +`platform_index`is the index of the OpenCL platform (Intel / AMD / Nvidia). +If you are unsure of either GPU or platform index value, you can use `clinfo` tool that comes with AMD APP SDK to dump the values. ``` -"gpu_thread_num" : 2, - "gpu_threads_conf" : [ { "index" : 0, "intensity" : 1000, "worksize" : 8, "affine_to_cpu" : false }, { "index" : 1, "intensity" : 1000, "worksize" : 8, "affine_to_cpu" : false }, ], + +"platform_index" : 0, ``` |
