I test many time in inception-bn, I found my machine run mxnet is so fast at the beginning(184 sam/sec), but slowly down litte later(174 sam/sec), why?how can I run mxnet full speed all the time? temperatures too hot(max is 63'c)?my cpu rate is 500% (full is 1200%), 6 core, (12 thread core)
INFO:root:Start training with [gpu(0), gpu(1), gpu(2)]
INFO:root:Iter[0] Batch [10] Speed: 201.07 samples/sec
INFO:root:Iter[0] Batch [20] Speed: 188.29 samples/sec
INFO:root:Iter[0] Batch [30] Speed: 183.96 samples/sec
INFO:root:Iter[0] Batch [40] Speed: 184.11 samples/sec
INFO:root:Iter[0] Batch [50] Speed: 184.51 samples/sec
INFO:root:Iter[0] Batch [60] Speed: 185.40 samples/sec
INFO:root:Iter[0] Batch [70] Speed: 178.27 samples/sec
INFO:root:Iter[0] Batch [80] Speed: 176.74 samples/sec
INFO:root:Iter[0] Batch [90] Speed: 174.46 samples/sec
INFO:root:Iter[0] Batch [100] Speed: 175.03 samples/sec
INFO:root:Iter[0] Batch [110] Speed: 171.43 samples/sec
INFO:root:Iter[0] Batch [120] Speed: 174.72 samples/sec