Optimized singleLayer #43
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klensink
reviewed
Feb 5, 2018
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| th1,th2,th3,th4 = splitWeights(this,theta) | ||
| dth1,dth2,dth3,dth4 = splitWeights(this,dtheta) | ||
| dZ = Jthetamv(this.K,dth1,th1,Y) .+ this.Bin*dth2 | ||
| dZ::Array{T,2} = Jthetamv(this.K,dth1,th1,Y) .+ this.Bin*dth2 |
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I would assume this means Jthetamv(::ConvGEMMKernel) is unstable? Or this.Bin*dth2. Either one, we should follow up
klensink
reviewed
Feb 5, 2018
| Kop = getOp(this.K,th1) | ||
| dZ = Kop*dY; | ||
| dZ::Array{T, 2} = Kop*dY; |
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Other fix is to call Amv(this.K, th1, dY) explicitly until we figure out whats going on with the LinearOperators.
Not sure if there is any performance difference, but if it's possible for dZ to not be an Array{T, 2} it will be a more robust method
klensink
approved these changes
Feb 5, 2018
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Method/ Time Saved / Mem saved
Apply / 15% / 9.5%
JYmv/ - / 4%
Jmv / - / 2.5%
Jthetamv / - / 3.3%