fun short test - realtime record on I5-9400f only
BDPT is CPU only in LuxCore, MLT too. But you can use light tracing in LuxCore which is simplified version of BDPT and its work on GPU, only issue that it's not that accurate and works only with Sobol/Random sampler which is might not be able to handle very complex caustics/light paths like BDPT with smart samplere MLT can.
