ci: setup ci tests and checks ( PROOF-622 ) (#1)

# Rationale for this change

This PR adds the initial CI workflows necessary to ensure code quality.

# What changes are included in this PR?

* Add PR template.
* Add GitHub actions workflow to test, check, and lint the code.

# Are these changes tested?

Yes.

.github/pull_request_template.md

@@ -0,0 +1,22 @@
+# Rationale for this change
+
+<!--
+ Why are you proposing this change? If this is already explained clearly in the linked Jira ticket then this section is not needed.
+ Explaining clearly why changes are proposed helps reviewers understand your changes and offer better suggestions for fixes.  
+-->
+
+# What changes are included in this PR?
+
+<!--
+There is no need to duplicate the description in the ticket here but it is sometimes worth providing a summary of the individual changes in this PR.
+-->
+
+# Are these changes tested?
+
+<!--
+We typically require tests for all PRs in order to:
+1. Prevent the code from being accidentally broken by subsequent changes
+2. Serve as another way to document the expected behavior of the code
+
+If tests are not included in your PR, please explain why (for example, are they covered by existing tests)?
+-->

.github/workflows/test-check-lint.yml

@@ -0,0 +1,46 @@
+name: Test-Check-Lint
+
+on:
+  workflow_call:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  format-code:
+    name: Check Code
+    runs-on: self-hosted
+    steps:
+      - name: Checkout Code Format
+        uses: actions/checkout@v3
+      - run: docker run --rm -v "$PWD":/src:ro -w /src --privileged spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0 /bin/bash -c "cp -av /src/ /src_tmp/; cd /src_tmp; /root/.cargo/bin/cargo fmt --all -- --check"
+
+  clippy-code:
+    name: Clippy Code
+    runs-on: self-hosted
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+      - run: docker run --rm -v "$PWD":/src:ro -w /src --privileged spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0 /bin/bash -c "cp -av /src/ /src_tmp/; cd /src_tmp; /root/.cargo/bin/rustup component add clippy; /root/.cargo/bin/cargo clippy --all-targets --all-features -- -D warnings"
+
+  test-cpu:
+    name: Test the CPU backend
+    runs-on: self-hosted
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+      - run: docker run --rm -v "$PWD":/src:ro -w /src --privileged spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0 /bin/bash -c "cp -av /src/ /src_tmp/; cd /src_tmp; /root/.cargo/bin/cargo test --features cpu"
+
+  test-gpu:
+    name: Test the GPU backend
+    runs-on: self-hosted
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+      - run: docker run --rm -v "$PWD":/src:ro -w /src --gpus all --privileged spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0 /bin/bash -c "nvidia-smi"
+      - run: docker run --rm -v "$PWD":/src:ro -w /src --gpus all --privileged spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0 /bin/bash -c "cp -av /src/ /src_tmp/; cd /src_tmp; /root/.cargo/bin/cargo test --features gpu"

ci/run_docker_with_cpu.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -e
+
+IMAGE=spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0
+
+# If you don't have a GPU instance configured in your machine
+docker run -v "$PWD":/src -w /src --privileged -it "$IMAGE"

ci/run_docker_with_gpu.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -e
+
+IMAGE=spaceandtimelabs/blitzar:12.2.0-cuda-1.71.1-rust-0
+
+# If you have a GPU instance configured in your machine
+docker run -v "$PWD":/src -w /src --gpus all --privileged -it "$IMAGE"

src/sequence/mod.rs

@@ -89,7 +89,7 @@ impl<'a> Sequence<'a> {
             assert!(element_size > 0);
             assert!(element_size <= 32);
         }
-        let len = slice.len() * element_size;
+        let len = std::mem::size_of_val(slice);
         let data_slice = unsafe { core::slice::from_raw_parts(slice.as_ptr() as *const u8, len) };
         Sequence {
             data_slice,