nudles commented on issue #624: SINGA-487 Include NCCL and MPICH in conda build URL: https://github.com/apache/singa/pull/624#issuecomment-598212865 > > > Sorry, please let me clarify: > > 1. yes, travis is for cpu only, that’s why I created a separate folder tool/conda/singa/travis to NOT include the gpu related library cudnn, nccl, and mpich. This folder is only used by travis for cpu version build. > > 2. I added the nccl and mpich in the meta file of original folder tool/conda/singa, which is not for travis and used for gpu version of singa conda build > > 3. Currently this PR should be adding nccl into singa-gpu. Meanwhile, it is also good to separate singa-dist and singa-gpu > Thanks a lot! 1. since travis is for cpu-only, why do you create another folder for it? nothing needs to be changed. the scripts for travis building are [here](https://github.com/apache/singa/tree/dev/tool/travis) 2. we only need to add a folder conda/dist like conda/cpu and conda/gpu for building singa-dist, and update the scripts in conda/singa/ accordingly. meta.yml of conda supports `if` like this [line](https://github.com/apache/singa/blob/dev/tool/conda/singa/meta.yaml#L52).
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