fix: Fix feature flags for the forward run (#13)

- Fix feature flags (it caused issues in `forward_run` mode as it had
p256 precompile disabled)
- Add more info to the readme.

Author: popzxc

Cargo.lock

@@ -27,14 +27,15 @@ thiserror = "1"
 
 # For local debugging: replace remote dependencies with local ones, init the submodule, and get convenient debugging experience.
 # DO NOT use local dependencies outside of debugging.
-# forward_system = { path = "../zksync-os/forward_system", features = ["no_print", "pectra"] }
+# forward_system = { path = "../zksync-os/forward_system", features = ["no_print", "pectra" ] }
 # oracle_provider = { path = "../zksync-os/oracle_provider" }
 # callable_oracles = { path = "../zksync-os/callable_oracles" }
 # crypto = { path = "../zksync-os/crypto" }
 # zk_ee = { path = "../zksync-os/zk_ee" }
 # basic_system = { path = "../zksync-os/basic_system" }
 # basic_bootloader = { path = "../zksync-os/basic_bootloader" }
 # zksync_os_runner = { path = "../zksync-os/zksync_os_runner" }
+# system_hooks = { path = "../zksync-os/system_hooks", features = ["p256_precompile"] }
 
 forward_system = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka", features = ["no_print", "pectra"] }
 oracle_provider = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka" }
@@ -44,6 +45,7 @@ zk_ee = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/mor
 basic_system = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka" }
 basic_bootloader = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka" }
 zksync_os_runner = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka" }
+system_hooks = { git = "https://github.com/matter-labs/zksync-os", branch = "popzxc/more-ethproofs-fusaka", features = ["p256_precompile"] }
 
 # execution_utils = { git = "https://github.com/matter-labs/zksync-airbender", branch = "dev", default-features = false, optional = true }
 # risc_v_simulator = { git = "https://github.com/matter-labs/zksync-airbender", branch = "dev", features = ["delegation"], optional = true }

ethereum_prover/Cargo.toml

@@ -4,6 +4,14 @@
 
 `ethereum_prover` is a pipeline-style binary that ingests Ethereum blocks and produces witnesses or GPU proofs, with optional submission to EthProofs.
 
+## HW requirements
+
+- The best CPU you can get (CPU often becomes a bottleneck).
+- At least one NVIDIA RTX 5090 or better (32GB VRAM required).
+- 64GB RAM (for a single GPU).
+
+In case of multi-GPU setup, the prover will automatically detect and utilize all the available suitable GPUs.
+
 ## Running
 
 On a fresh Ubuntu machine (e.g. in `vast.ai`), you might need to run the [`ubuntu_setup` script](../scripts/ubuntu_setup.sh).
@@ -29,7 +37,8 @@ transaction receipts fetched from L1).
 ### Build Notes
 
 The project unconditionally builds the GPU prover, because keeping it behind the feature flag would complicate the development.
-To build the project without CUDA drivers installed, set `ZKSYNC_USE_CUDA_STUBS` environment variable to `true`.
+To build the project without CUDA drivers installed, set `ZKSYNC_USE_CUDA_STUBS` environment variable to `true`. Do not do that
+in any kind of environment where the built binary can actually be run.
 
 `RUST_MIN_STACK` is required since the code might have compile issue with default value.
 
@@ -86,6 +95,13 @@ Reusable configs live in `ethereum_prover/configs/`:
 - GPU tests are opt-in: `RUN_GPU_TESTS=1 cargo nextest run -p ethereum_prover --test gpu_prover_fixture`
 - Prefer unit tests for new behavior; add integration tests in `ethereum_prover/tests/` only when needed.
 
+## Observability
+
+Optional Sentry integration is supported. Currently, it will only generate alerts for failed witness generations or proofs.
+Exported Prometheus metrics can be seen in [metrics.rs](src/metrics.rs).
+
+Sample Grafana dashboard for exported metrics is available in the [infra](../infra/) folder.
+
 ## License
 
 [MIT](../LICENSE-MIT) or [Apache 2.0](../LICENSE-APACHE) at your option.