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adding rust ADBench version #1797

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adding rust ADBench version #1797

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@ZuseZ4 ZuseZ4 commented Mar 19, 2024

Usage for Rust side

cargo +enzyme run --release
Comipling a lib.so to use from C:
cargo +enzyme rustc --release --lib --crate-type=cdylib

@ZuseZ4 ZuseZ4 requested a review from wsmoses March 19, 2024 04:13
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ZuseZ4 commented Mar 19, 2024

Usage instruction: cargo +enzyme build
fails with

  todo - hook in rust allocation fns
  UNREACHABLE executed at /h/344/drehwald/prog/rust/src/tools/enzyme/enzyme/Enzyme/GradientUtils.cpp:9107!

llvm_unreachable("todo - hook in rust allocation fns");

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ZuseZ4 commented Mar 19, 2024

printing the module before AD (with a few helping infos at the end)
err.ll.txt

@ZuseZ4 ZuseZ4 changed the title adding gmm adding rust ADBench version Apr 3, 2024
@@ -127,6 +127,19 @@ extern "C" {
double* reproj_err,
double* w_err
);

void rust2_ba_objective(
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weak symbol variant of this.

-> running these doesn't require rust.

%-opt.ll: %-raw.ll
opt $^ -o $@ -S
#opt $^ -O2 -o $@ -S
$(dir)/benchmarks/ReverseMode/ba/target/release/libbars.a: src/lib.rs Cargo.toml
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if this can be optional?

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What would you like this variable to use when determining if Rust is enabled? We could run cargo +enzyme version (checking whether a toolchain named enzyme is configured) and/or we could have an environment variable to be set (by CMake or otherwise).

Comment on lines 34 to 63
fn radix2(data: &mut [f64], i_sign: f64) {
let n = data.len() / 2;
if n == 1 {
return;
}

let (a,b) = data.split_at_mut(n);
radix2(a, i_sign, n/2);
radix2(b, i_sign, n/2);
let (a, b) = data.split_at_mut(n);
radix2(a, i_sign);
radix2(b, i_sign);

let wtemp = i_sign * (PI / n as f64).sin();
let wpi = -i_sign * (2.0 * PI / n as f64).sin();
let wpr = -2.0 * wtemp * wtemp;
let mut wr = 1.0;
let mut wi = 0.0;

assert_eq!(data.len(), 2*n);
for i in (0..n).step_by(2) {
let in_n = i + n;
let tempr = data[in_n] * wr - data[in_n + 1] * wi;
let tempi = data[in_n] * wi + data[in_n + 1] * wr;
for i in (0..n).step_by(2) {
let tempr = b[i] * wr - b[i + 1] * wi;
let tempi = b[i] * wi + b[i + 1] * wr;

data[in_n] = data[i] - tempr;
data[in_n + 1] = data[i + 1] - tempi;
data[i] += tempr;
data[i + 1] += tempi;
b[i] = a[i] - tempr;
b[i + 1] = a[i + 1] - tempi;
a[i] += tempr;
a[i + 1] += tempi;

let wtemp_new = wr;
wr += wr * wpr - wi * wpi;
wi += wi * wpr + wtemp_new * wpi;
}

}
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@jedbrown jedbrown Oct 31, 2024

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@ZuseZ4 Let me know if you don't like this and I'll remove it. (Other changes in this commit are just rustfmt/whitespace.)

jedbrown and others added 21 commits October 31, 2024 14:11
* main: (49 commits)
  Fix iv of constant (#2141)
  Update benchmarks (#2035)
  Implement tgamma derivative (#2140)
  tgamma error improvement (#2139)
  Improve cache index error message (#2138)
  Fixes warnings and adds missing header guards (#2124)
  mlir: cache and reuse reverse funcs (#2133)
  mlir: implement forward mode for func.call (#2134)
  mlir: Func call reverse diff (#2127)
  Update build_tarballs.jl
  Fix combined temp cache for reverse (#2131)
  Improve runtime activity err message (#2132)
  Fix undef value storage (#2129)
  Adapt to const tblgen (#2128)
  Add gcloaded TT (#2125)
  Fix blas decl updater indexing (#2123)
  Add header files to ClangEnzyme target (#2062)
  Improve unknown function error messages (#2120)
  Fix handle sync (#2122)
  Support more Julia 1.11 functions (#2121)
  ...
This yields identical assembly apart from asserts at the top of safe::radix2.
Note that -mtune=cascadelake is only about tuning (like instruction
timing) not arch/features.
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4 participants