gpu_probe_info

Builtin index · REPL & diagnostics

result = gpu_probe_info()

Input: no input · Output: result

What it is

Takes no arguments.

Overloads

One call shape — this function is not overloaded.

Code	Input	Output	Description
`result = gpu_probe_info()`	no input	`result` boolean, number, or matrix	Returns a struct-like value with three fields: `.available` (a boolean, whether a GPU backend was found), `.crossover` (a number, the measured matrix/problem size above which the GPU wins over the CPU — `inf` on a build without GPU support), and `.samples` (a list of the timed sample points used to compute the crossover). Reports what the GPU probe found at startup.

Examples

From the documentation, and run by the build -- the output and the figure below are what the engine actually produced. Simplest first.

A = randn(200, 200)
B = randn(200, 200)
C = A * B
d = device_used()
print("device = {d.device}, gpu_dispatches = {d.gpu_dispatches}")
p = gpu_probe_info()
print("gpu available = {p.available}, crossover = {p.crossover}")

from repl-diagnostics