Hi,
I am running caffe opencl branch (https://github.com/BVLC/caffe/tree/opencl) with isaac master branch on INTEL BROADWELL platform with below command:
./build/test/test.testbin --gtest_filter=NetTest/2.TestLossWeight, that will bring fail.
While comment out the line 94 to 141 on file https://github.com/ptillet/isaac/blob/master/lib/runtime/profiles.cpp, that will pass the test case.

Can you reproduce the fail case, seems there is some problem with the copy operation on predict_ logic?