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568•deofoo•5d ago•166 comments
Open in hackernews

Show HN: GPULlama3.java Llama Compilied to PTX/OpenCL Now Integrated in Quarkus

24•mikepapadim•1mo ago
wget https://github.com/beehive-lab/TornadoVM/releases/download/v... unzip tornadovm-2.1.0-opencl-linux-amd64.zip # Replace <path-to-sdk> manually with the absolute path of the extracted folder export TORNADO_SDK="<path-to-sdk>/tornadovm-2.1.0-opencl" export PATH=$TORNADO_SDK/bin:$PATH

tornado --devices tornado --version

# Navigate to the project directory cd GPULlama3.java

# Source the project-specific environment paths -> this will ensure the source set_paths

# Build the project using Maven (skip tests for faster build) # mvn clean package -DskipTests or just make make

# Run the model (make sure you have downloaded the model file first - see below) ./llama-tornado --gpu --verbose-init --opencl --model beehive-llama-3.2-1b-instruct-fp16.gguf --prompt "tell me a joke"

Comments

mikepapadim•1mo ago
https://github.com/beehive-lab/GPULlama3.java
lostmsu•1mo ago
Does it support flash attention? Use tensor cores? Can I write custom kernels?

UPD. found no evidence that it supports tensor cores, so it's going to be many times slower than implementations that do.

mikepapadim•1mo ago
Yes, when you use the PTX backend it supports Tensor Cores.It has also implementation for flash attention. You can also write your own kernels, have a look here: https://github.com/beehive-lab/GPULlama3.java/blob/main/src/... https://github.com/beehive-lab/GPULlama3.java/blob/main/src/...
lostmsu•1mo ago
TornadoVM GitHub has no mentions of tensor cores or WMMA instructions. The only mention of tensor cores is in 2024 and states they are not used: https://github.com/beehive-lab/TornadoVM/discussions/393
mikepapadim•1mo ago
https://github.com/beehive-lab/TornadoVM/pull/732 https://github.com/beehive-lab/TornadoVM/pull/313
lostmsu•1mo ago
I believe these are SIMD. Tensor cores require MMA family of instructions. Ask me how I know. :)

https://github.com/m4rs-mt/ILGPU/compare/master...lostmsu:IL...

Good article: https://alexarmbr.github.io/2024/08/10/How-To-Write-A-Fast-M...