privacy-scaling-explorations · bchyl · Jun 14, 2022 · Jun 14, 2022 · Jun 14, 2022 · Jun 16, 2022
diff --git a/halo2_proofs/Cargo.toml b/halo2_proofs/Cargo.toml
@@ -31,14 +31,29 @@ harness = false
 [dependencies]
 backtrace = { version = "0.3", optional = true }
 rayon = "1.5.1"
-ff = "0.11"
-group = "0.11"
+ff = { git = 'https://github.com/starslabhq/ff', branch = "v0.11.1Char" }
+group = { git = "https://github.com/starslabhq/group", branch = "v0.11.0ff" }
 rand = "0.8"
 rand_core = { version = "0.6", default-features = false }
 blake2b_simd = "1"
-pairing = { git = 'https://github.com/appliedzkp/pairing', package = "pairing_bn256", "tag" = "v0.1.1"}
+pairing = { git = 'https://github.com/starslabhq/pairing', package = "pairing_bn256", branch = "primeFieldChar" }
 subtle = "2.3"
 cfg-if = "0.1"
+ark-std = { version = "0.3", features = ["print-trace"] }
+
+log = "0.4.8"
+thiserror = "1.0.10"
+crossbeam-channel = "0.5.0"
+crossbeam = {version = "0.7", optional = true}
+lazy_static = {version = "1", optional = true}
+futures = {package = "futures", version = "0.3", default_features = false, features = ["executor"]}
+num_cpus = "1"
+env_logger = "0.8.1"
+
+# gpu feature
+rust-gpu-tools = { version = "0.3.0", optional = true }
+ff-cl-gen = { git = 'https://github.com/starslabhq/ff-cl-gen', optional = true,  branch = "gpuFft" }
+fs2 = { version = "0.4.3", optional = true }
 
 # Developer tooling dependencies
 plotters = { version = "0.3.0", optional = true }
@@ -62,11 +77,12 @@ rand_core = { version = "0.6", default-features = false, features = ["getrandom"
 getrandom = { version = "0.2", features = ["js"] }
 
 [features]
-default = ["shplonk"]
+default = ["shplonk", "gpu"]
 dev-graph = ["plotters", "tabbycat"]
 gadget-traces = ["backtrace"]
 sanity-checks = []
 shplonk = []
+gpu = ["rust-gpu-tools", "ff-cl-gen", "fs2", "lazy_static", "crossbeam", "futures/thread-pool"]
 gwc = []
 
 [lib]

diff --git a/halo2_proofs/src/gpu/COPYRIGHT b/halo2_proofs/src/gpu/COPYRIGHT
@@ -0,0 +1,14 @@
+Copyrights in the "ff-cl-gen" library are retained by their contributors. No
+copyright assignment is required to contribute to the "ff-cl-gen" library.
+
+The "ff-cl-gen" library is licensed under either of
+
+ * Apache License, Version 2.0, (see ./LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license (see ./LICENSE-MIT or http://opensource.org/licenses/MIT)
+
+at your option.
+
+Unless you explicitly state otherwise, any contribution intentionally
+submitted for inclusion in the work by you, as defined in the Apache-2.0
+license, shall be dual licensed as above, without any additional terms or
+conditions.
diff --git a/halo2_proofs/src/gpu/LICENSE-APACHE b/halo2_proofs/src/gpu/LICENSE-APACHE
@@ -0,0 +1,201 @@
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diff --git a/halo2_proofs/src/gpu/LICENSE-MIT b/halo2_proofs/src/gpu/LICENSE-MIT
@@ -0,0 +1,23 @@
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diff --git a/halo2_proofs/src/gpu/error.rs b/halo2_proofs/src/gpu/error.rs
@@ -0,0 +1,31 @@
+#[cfg(feature = "gpu")]
+use rust_gpu_tools::opencl;
+
+#[derive(thiserror::Error, Debug)]
+pub enum GPUError {
+    #[error("GPUError: {0}")]
+    Simple(&'static str),
+    #[cfg(feature = "gpu")]
+    #[error("OpenCL Error: {0}")]
+    OpenCL(#[from] opencl::GPUError),
+    #[cfg(feature = "gpu")]
+    #[error("GPU taken by a high priority process!")]
+    GPUTaken,
+    #[cfg(feature = "gpu")]
+    #[error("No kernel is initialized!")]
+    KernelUninitialized,
+    #[error("GPU accelerator is disabled!")]
+    GPUDisabled,
+}
+
+pub type GPUResult<T> = std::result::Result<T, GPUError>;
+
+#[cfg(feature = "gpu")]
+impl From<std::boxed::Box<dyn std::any::Any + std::marker::Send>> for GPUError {
+    fn from(e: std::boxed::Box<dyn std::any::Any + std::marker::Send>) -> Self {
+        match e.downcast::<Self>() {
+            Ok(err) => *err,
+            Err(_) => GPUError::Simple("An unknown GPU error happened!"),
+        }
+    }
+}