"GPU Device list" is null object (regardless of GPU count) when json flag is used.

[matthewpopescu]

In non-multinode config, worldSize is set to "deviceCount" before cuDeviceGetCount(&deviceCount) is even called.

JsonOutput::recordDevices is given "worldSize" as a parameter, which is still 0, but the function implementation refers to this parameter as deviceCount.

The for loop exits immediately without populating the GPU device list in the json object.

[esitaridi]

Thanks for flagging this @matthewpopescu. We’re tracking it and will update the implementation accordingly.