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Switch to using nvcc --list-gpu-code for build.rs compute_cap #619

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Merged
merged 1 commit into from
Mar 27, 2023
Merged

Switch to using nvcc --list-gpu-code for build.rs compute_cap #619

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20 changes: 14 additions & 6 deletions build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -65,15 +65,23 @@ mod cuda {
let start = std::time::Instant::now();

let compute_cap = {
let out = std::process::Command::new("nvidia-smi")
.arg("--query-gpu=compute_cap")
.arg("--format=csv")
let out = std::process::Command::new("nvcc")
.arg("--list-gpu-code")
.output()
.unwrap();
let out = std::str::from_utf8(&out.stdout).unwrap();
let mut lines = out.lines();
assert_eq!(lines.next().unwrap(), "compute_cap");
lines.next().unwrap().replace('.', "")
let out = out.split("\n").collect::<Vec<&str>>();
let mut codes = Vec::with_capacity(out.len());
for code in out {
let code = code.split("_").collect::<Vec<&str>>();
if code.len() != 0 && code.contains(&"sm") {
if let Ok(num) = code[1].parse::<usize>() {
codes.push(num);
}
}
}
codes.sort();
*codes.last().unwrap()
};

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