Place bellman multicore operations behind a (default) feature flag
Co-authored-by: Jack Grigg <jack@z.cash>
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@ -13,16 +13,17 @@ rand = "0.4"
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bit-vec = "0.4.4"
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bit-vec = "0.4.4"
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ff = { path = "../ff" }
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ff = { path = "../ff" }
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futures = "0.1"
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futures = "0.1"
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futures-cpupool = "0.1"
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futures-cpupool = { version = "0.1", optional = true }
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group = { path = "../group" }
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group = { path = "../group" }
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num_cpus = "1"
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num_cpus = { version = "1", optional = true }
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crossbeam = "0.3"
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crossbeam = { version = "0.3", optional = true }
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pairing = { path = "../pairing", optional = true }
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pairing = { path = "../pairing", optional = true }
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byteorder = "1"
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byteorder = "1"
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[features]
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[features]
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groth16 = ["pairing"]
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groth16 = ["pairing"]
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default = ["groth16"]
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multicore = ["futures-cpupool", "crossbeam", "num_cpus"]
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default = ["groth16", "multicore"]
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[[test]]
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[[test]]
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name = "mimc"
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name = "mimc"
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11
src/lib.rs
11
src/lib.rs
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@ -3,13 +3,18 @@ extern crate group;
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#[cfg(feature = "pairing")]
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#[cfg(feature = "pairing")]
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extern crate pairing;
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extern crate pairing;
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extern crate rand;
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extern crate rand;
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extern crate num_cpus;
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extern crate futures;
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extern crate futures;
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extern crate futures_cpupool;
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extern crate bit_vec;
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extern crate bit_vec;
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extern crate crossbeam;
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extern crate byteorder;
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extern crate byteorder;
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#[cfg(feature = "multicore")]
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extern crate crossbeam;
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#[cfg(feature = "multicore")]
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extern crate futures_cpupool;
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#[cfg(feature = "multicore")]
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extern crate num_cpus;
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pub mod multicore;
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pub mod multicore;
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mod multiexp;
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mod multiexp;
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pub mod domain;
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pub mod domain;
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@ -4,6 +4,8 @@
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//! crossbeam but may be extended in the future to
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//! crossbeam but may be extended in the future to
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//! allow for various parallelism strategies.
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//! allow for various parallelism strategies.
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#[cfg(feature = "multicore")]
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mod implementation {
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use num_cpus;
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use num_cpus;
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use futures::{Future, IntoFuture, Poll};
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use futures::{Future, IntoFuture, Poll};
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use futures_cpupool::{CpuPool, CpuFuture};
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use futures_cpupool::{CpuPool, CpuFuture};
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@ -104,3 +106,63 @@ fn test_log2_floor() {
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assert_eq!(log2_floor(7), 2);
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assert_eq!(log2_floor(7), 2);
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assert_eq!(log2_floor(8), 3);
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assert_eq!(log2_floor(8), 3);
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}
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}
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}
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#[cfg(not(feature = "multicore"))]
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mod implementation {
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use futures::{future, Future, IntoFuture, Poll};
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#[derive(Clone)]
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pub struct Worker;
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impl Worker {
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pub fn new() -> Worker {
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Worker
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}
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pub fn log_num_cpus(&self) -> u32 {
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0
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}
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pub fn compute<F, R>(&self, f: F) -> R::Future
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where
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F: FnOnce() -> R + Send + 'static,
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R: IntoFuture + 'static,
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R::Future: Send + 'static,
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R::Item: Send + 'static,
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R::Error: Send + 'static,
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{
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f().into_future()
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}
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pub fn scope<F, R>(&self, elements: usize, f: F) -> R
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where
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F: FnOnce(&DummyScope, usize) -> R,
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{
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f(&DummyScope, elements)
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}
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}
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pub struct WorkerFuture<T, E> {
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future: future::FutureResult<T, E>,
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}
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impl<T: Send + 'static, E: Send + 'static> Future for WorkerFuture<T, E> {
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type Item = T;
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type Error = E;
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fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
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self.future.poll()
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}
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}
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pub struct DummyScope;
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impl DummyScope {
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pub fn spawn<F: FnOnce()>(&self, f: F) {
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f();
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}
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}
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}
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pub use self::implementation::*;
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