Questions pertaining to using julia-lang to interface with graphics processing units (GPUs)
Questions tagged [julia-gpu]
24 questions
1
vote
0 answers
Getting error while using flux with GPU in Julia
%%julia
# Load the data
println("start")
x_train, y_train,x_valid, y_valid=h5open("./data.h5", "r") do file
read(file, "tr_X","tr_Y","va_X","va_Y")
end|> gpu
println("read done")
x_train = reshape(x_train, (80,80,3,:))|> gpu
x_valid =…
Rijo Thomas
- 113
- 1
- 1
- 7
1
vote
2 answers
Compare 2 dataframe cell by cell using Julia
Using Julia, is there a way to compare 2 DataFrames cell by cell and output difference
E.g.:
expected result would produce dataframe with True/False
Thanks in advance for help
NorthPole
- 27
- 7
1
vote
1 answer
FastChain vs GPUs in DiffEqFlux
For GPU training of model, I am using
dudt = Chain(Dense(3,100,tanh),
Dense(100,3)) |> gpu
versus
CPU training
dudt = FastChain(
FastDense(3,100,tanh),
FastDense(100,3))
Over 1000 iterations, Fastchain is orders…
sleekh
- 31
- 3
1
vote
1 answer
BoundsError: attempt to access 2n-element UnitRange{Int32} at index [2n+1]
I’m recently using Knet and working on a CNN.
I have a dataset-input of 20000 x 1 x 1 x 200000 which I use for training
As soon as i start training with progress!(sgd(dtrn,ncycle(n))), I get following the error:
BoundsError: attempt to access…
hellothere
- 47
- 3
1
vote
1 answer
Julia MethodError: no method matching (::Dense{typeof(logistic),CuArray{Float32,2,Nothing},CuArray{Float32,1,Nothing}})(::Float32)
I have the following training data in CuArrays.
X: 300×8544 CuArray{Float32,2,Nothing}
y: 5×8544 Flux.OneHotMatrix{CuArray{Flux.OneHotVector,1,Nothing}}
and I have the following model I want to train:
# define activation
logistic(x) = 1. / (1 .+…
D.Danier
- 21
- 2
1
vote
0 answers
ArrayFire.jl performance slowly degrades over time
So I'm trying to use ArrayFire in Julia, and I find that the performance bizarrely degrades over time:
using ArrayFire
srand(1)
function f()
r = AFArray(zeros(Float32, 100, 100000))
a = AFArray(rand(Float32, 100, 100000))
for d in…
Set
- 934
- 6
- 25
1
vote
1 answer
How to tell if Suitesparse/CHOLMOD is using GPU?
I built Julia, which incorporates SuiteSparse, from scratch. When building the SuiteSparse dependency I ensured the instructions were followed for setting the relevant parts of the SuiteSparse_config.mk file.
However, having completed the build the…
conjectures
- 801
- 2
- 7
- 24
0
votes
2 answers
How to tune the hyperparameters of a Bayesian ODE fit in Julia?
I have been trying to replicate https://diffeqflux.sciml.ai/dev/examples/BayesianNODE_NUTS/, using different ODE equation, but I have received this result without uncertainty quantification, is it because I did the initial value u0 is higher…
Minou92
- 137
- 7
0
votes
1 answer
How do I access an element in a CuArray of Julia and change its value?
I want to change only one element, as shown in the code below.
using Flux, CuArrays
a = rand(3,3) |> gpu
CuArrays.allowscalar(false)
a[1, 1] = 1.0f0
Because allowscalar is set to false, it is natural that it will appear as below.
ERROR: scalar…
Null
- 3
- 1