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Define XLA.DEFAULT_DEVICE to set default device ID #1866

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Define XLA.DEFAULT_DEVICE to set default device ID #1866

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2c169ef
Use `REACTANT_DEFAULT_DEVICE` to set default device ID with env var
giordano Nov 13, 2025
3f9be82
Interpret `REACTANT_DEFAULT_DEVICE` as 0-based
giordano Nov 13, 2025
af67d52
Use global `const` `Reactant.XLA.DEFAULT_DEVICE` instead of env var
giordano Nov 13, 2025
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8 changes: 7 additions & 1 deletion src/xla/Client.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -13,4 +13,10 @@ function get_device end
function get_addressable_device end
function platform_name end

default_device(client::AbstractClient) = first(addressable_devices(client))
function default_device(client::AbstractClient)
return addressable_devices(client)[something(
# `REACTANT_DEFAULT_DEVICE` is interpreted as 0-based.
tryparse(Int, get(ENV, "REACTANT_DEFAULT_DEVICE", "0")) + 1,
1,
)]
end
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