From 7108d057fb8bf0d84326619098755305c41e1572 Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Thu, 28 Feb 2019 23:09:21 +1100
Subject: [PATCH] Set `BeaconState` to process deposits in parallel

Provides a large speed improvement.
---
 eth2/types/src/beacon_state.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/eth2/types/src/beacon_state.rs b/eth2/types/src/beacon_state.rs
index 3d94a8e3d..61f270e15 100644
--- a/eth2/types/src/beacon_state.rs
+++ b/eth2/types/src/beacon_state.rs
@@ -9,6 +9,7 @@ use bls::verify_proof_of_possession;
 use honey_badger_split::SplitExt;
 use log::{debug, error, trace};
 use rand::RngCore;
+use rayon::prelude::*;
 use serde_derive::Serialize;
 use ssz::{hash, Decodable, DecodeError, Encodable, SszStream, TreeHash};
 use std::collections::HashMap;
@@ -202,7 +203,7 @@ impl BeaconState {
         trace!("Processing genesis deposits...");
 
         let deposit_data = initial_validator_deposits
-            .iter()
+            .par_iter()
             .map(|deposit| &deposit.deposit_data)
             .collect();