$ nix build '.#opencl'
$ result/bin/benchmark
main: build = 0 (unknown)
Starting Test
Allocating Memory of size 794558464 bytes, 757 MB
ggml_opencl: selecting platform: 'Intel(R) OpenCL Graphics'
ggml_opencl: selecting device: 'Intel(R) Iris(R) Xe Graphics'
ggml_opencl: device FP16 support: true
Creating new tensors

------ Test 1 - Matrix Mult via F32 code ------------------------------------------------------------------------------
n_threads=1
            m11: type = 0 (  f32) ne = 11008 x  4096 x     1, nb = (    4, 44032, 180355072) - Sum of tensor m11 is 16777216.00
             m2: type = 0 (  f32) ne = 11008 x   128 x     1, nb = (    4, 44032, 5636096) - Sum of tensor m2 is 2818048.00
GGML_ASSERT: /build/wnslnw6pk8d4c8k0b8w4w4qz45wgy9hw-source/ggml-opencl.cpp:1524: false
zsh: IOT instruction (core dumped)  result/bin/benchmark