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Update docs to mention RUSTFLAGS (#1766)

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This makes sure that we use AVX instructions when available. Seems to
speed up Plonky3 proofs (slightly for Goldilocks and 30-50% for
BabyBear).
This commit is contained in:
Georg Wiese
2024-09-06 18:37:42 +02:00
committed by GitHub
parent 277edbf5dd
commit 4340d462ed
1 changed files with 7 additions and 5 deletions
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12
book/src/installation.md
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@@ -30,10 +30,10 @@ You will also need the following build time dependencies:
## Building *powdr*
Using a single Cargo command (enable the Halo2 backend to use it with the cli):
Using a single Cargo command (enable the Halo2 & Plonky3 backends to use it with the cli):
```sh
cargo install --git https://github.com/powdr-labs/powdr --features halo2 powdr-cli
RUSTFLAGS='-C target-cpu=native' cargo install --git https://github.com/powdr-labs/powdr --features halo2,plonky3 powdr-cli
```
Or, by manually building from a local copy of the [powdr repository](https://github.com/powdr-labs/powdr):
@@ -43,15 +43,17 @@ Or, by manually building from a local copy of the [powdr repository](https://git
git clone https://github.com/powdr-labs/powdr.git
cd powdr
# install powdr-cli
cargo install --features halo2 --path ./cli
RUSTFLAGS='-C target-cpu=native' cargo install --features halo2,plonky3 --path ./cli
```
Note that setting `RUSTFLAGS='-C target-cpu=native'` builds a binary optimized for the host CPU.
## Building *powdr-rs*
Using a single Cargo command:
```sh
cargo install --git https://github.com/powdr-labs/powdr powdr-rs-cli
RUSTFLAGS='-C target-cpu=native' cargo install --git https://github.com/powdr-labs/powdr powdr-rs-cli
```
Or, by manually building from a local copy of the [powdr repository](https://github.com/powdr-labs/powdr):
@@ -61,5 +63,5 @@ Or, by manually building from a local copy of the [powdr repository](https://git
git clone https://github.com/powdr-labs/powdr.git
cd powdr
# install powdr-rs-cli
cargo install --path ./cli-rs
RUSTFLAGS='-C target-cpu=native' cargo install --path ./cli-rs
```