[Documentation]: Document user-facing iris.hip module APIs

[Copilot]

Documentation for iris.hip module

• Add comprehensive docstrings to all functions in iris/hip.py following NumPy/Google style
• Create new API reference page: docs/reference/api-hip-module.md
• Update docs/sphinx/_toc.yml to include the new HIP module documentation
• Update docs/reference/api-reference.md to link to HIP module documentation
• Run linting to ensure code quality
• Remove unused APIs not used in codebase
• Remove internal APIs from documentation
• Document only APIs used in examples/tests
• Fix XCC acronym definition
• Sync with main branch

Final documented APIs (2 functions):

• get_wall_clock_rate() - Used in 6 GEMM examples for GPU frequency queries
• get_num_xcc() - Used in unit tests for XCC (Accelerated Compute Core) count queries

Not documented (internal use only):

• set_device, get_cu_count, count_devices - Used internally by iris.py
• get_ipc_handle, open_ipc_handle - Used internally for IPC operations
• gpu_try, gpuIpcMemHandle_t, get_device_id, get_rocm_version - Internal helpers

Merged changes from main:

• Multi-backend support (AMD HIP / NVIDIA CUDA)
• Fine-grained allocator removal
• New CI workflows and tests
• Updated examples and benchmarks
• Resolved conflicts while preserving documentation for user-facing APIs

Fixes #187

Original prompt

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This section details on the original issue you should resolve

<issue_title>[Documentation]: Document the HIP Module</issue_title>
<issue_description>### Description of errors

The iris.hip module is not part of the documentation and all functions in it are not documented. Document all APIs. Add the APIs to the web docs. Follow the guidelines and examples we have in iris.py

Attach any links, screenshots, or additional evidence you think will be helpful.

No response</issue_description>

<agent_instructions>Make sure to follow our documentation style. </agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes #187

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[mawad-amd]

@copilot some APIs here are not used in the code base. If they are not used, remove them. If they are not used in the examples or tests, also remove them.

[Copilot]

Removed 4 unused functions from the hip module: get_arch_string, hip_malloc, malloc_fine_grained, and hip_free. All remaining 11 functions are either used directly in the codebase (iris.py, examples, tests) or used internally by other functions. Commit: SHORT_HASH

[mawad-amd]

@copilot some apis are internal usage only. we dont need to expose them.

[Copilot]

Removed 4 internal APIs from documentation: hip_try, hipIpcMemHandle_t, get_device_id, and get_rocm_version. These remain in the code for internal use but are no longer exposed in the public API docs. Only 7 public APIs are now documented. Commit: 449f300

[mawad-amd]

@copilot are set and count_devices devices used? get_ipc_handle and open_ipc_handle are internal usage only. Move them into internal or a detail file. I only want functions used in examples to be documented and part of hip module.

[Copilot]

Updated documentation to include only APIs used in examples/tests. Now documenting only 2 functions:

• get_wall_clock_rate (used in 6 GEMM examples)
• get_num_xcc (used in tests)

Removed from documentation: set_device, count_devices, get_cu_count, get_ipc_handle, open_ipc_handle (all internal use only). Commit: b8778e6

[mawad-amd]

@copilot XCC Accelerated Compute Core

[Copilot]

Updated XCC acronym definition to "Accelerated Compute Core" in the docstring. Commit: a36e9a1

[mawad-amd]

@copilot sync with main.

[Copilot]

@copilot sync with main.

Synced with main branch. Merged all changes including multi-backend support and kept documentation for get_wall_clock_rate() and get_num_xcc(). Commit: 3ad0f40