Origami provides a fast, analytical, deterministic methodology to select optimal GEMM configuration (such as tile size) for out-of-the-box GEMM performance. Origami estimates performance by sweeping over candidate configs (tile sizes and mapping) to select the optimal configuration based on compute and memory latencies.

Documentation

Quick Start Guide
- Prerequisites
- Install
API Example
- Python API
- C++ API
Supported GPUs
Build and Install
Debug Logging
Contribute
How to Cite

Quick Start Guide

Prerequisites

ROCm/HIP: This package requires ROCm/HIP to be installed on your system. ROCm cannot be installed via pip and must be installed separately. See the ROCm Quick Start Guide for installation instructions. Ensure CMAKE_PREFIX_PATH includes your ROCm install (default: /opt/rocm).

Install

pip install git+https://github.com/ROCm/rocm-libraries.git#subdirectory=shared/origami/python

API Example

Python API

import origami

# Get hardware information for device 0
hardware = origami.get_hardware_for_device(0)

# Create a problem description
problem = origami.problem_t()
problem.size = origami.dim3_t(2048, 2048, 2048)  # M, N, K dimensions
problem.batch = 1
problem.a_transpose = origami.transpose_t.T
problem.b_transpose = origami.transpose_t.N
problem.a_dtype = origami.data_type_t.Half
problem.b_dtype = origami.data_type_t.Half
problem.c_dtype = origami.data_type_t.Half
problem.d_dtype = origami.data_type_t.Half
problem.mi_dtype = origami.data_type_t.Half
problem.a_mx_block_size = 0
problem.b_mx_block_size = 0

# Create candidate configurations
configs = []
config = origami.config_t()
config.mt = origami.dim3_t(256, 256, 64)  # Macro tile dimensions
config.mi = origami.dim3_t(16, 16, 32)    # Matrix instruction dimensions
config.occupancy = 4
configs.append(config)

# Select best configuration
best_result = origami.select_config(problem, hardware, configs)
print(f"Best latency: {best_result.latency}")
print(f"Best config: MT=({best_result.config.mt.m}, {best_result.config.mt.n}, {best_result.config.mt.k})")

C++ API

#include "origami/origami.hpp"
#include "origami/types.hpp"
#include <vector>
#include <iostream>

int main() {
    // Get hardware information for device 0
    auto hardware = origami::hardware_t::get_hardware_for_device(0);
    
    // Create a problem description
    origami::problem_t problem;
    problem.size.m = 2048;  // M dimension
    problem.size.n = 2048;  // N dimension
    problem.size.k = 2048;  // K dimension
    problem.batch = 1;
    problem.a_transpose = origami::transpose_t::T;
    problem.b_transpose = origami::transpose_t::N;
    problem.a_dtype = origami::data_type_t::Half;
    problem.b_dtype = origami::data_type_t::Half;
    problem.c_dtype = origami::data_type_t::Half;
    problem.d_dtype = origami::data_type_t::Half;
    problem.mi_dtype = origami::data_type_t::Half;
    problem.a_mx_block_size = 0;
    problem.b_mx_block_size = 0;
    
    // Create candidate configurations
    std::vector<origami::config_t> configs;
    origami::config_t config;
    config.mt.m = 256;  // Macro tile M
    config.mt.n = 256;  // Macro tile N
    config.mt.k = 64;   // Macro tile K
    config.mi.m = 16;   // Matrix instruction M
    config.mi.n = 16;   // Matrix instruction N
    config.mi.k = 32;   // Matrix instruction K
    config.occupancy = 4;
    configs.push_back(config);
    
    // Select best configuration
    auto best_result = origami::select_config(problem, hardware, configs);
    std::cout << "Best latency: " << best_result.latency << std::endl;
    std::cout << "Best config: MT=(" 
              << best_result.config.mt.m << ", " 
              << best_result.config.mt.n << ", " 
              << best_result.config.mt.k << ")" << std::endl;
    
    // Alternative: Simple selection using just M, N, K
    auto best_result_simple = origami::select_config_mnk(2048, 2048, 2048, hardware, configs);
    
    // Rank all configurations by performance
    auto ranked_configs = origami::rank_configs(problem, hardware, configs);
    std::cout << "Top 5 configs:" << std::endl;
    for (size_t i = 0; i < std::min(ranked_configs.size(), size_t(5)); ++i) {
        const auto& result = ranked_configs[i];
        std::cout << "  Rank " << (i+1) << ": latency=" << result.latency 
                  << ", MT=(" << result.config.mt.m << ", " 
                  << result.config.mt.n << ", " << result.config.mt.k << ")" << std::endl;
    }
    
    // Compute performance in GFLOPS
    double gflops = origami::compute_perf_gflops(hardware, problem, best_result.latency);
    std::cout << "Performance: " << gflops << " GFLOPS" << std::endl;
    
    return 0;
}

Supported GPUs

LLVM Target	GPUs	Functional	Optimized
gfx942	MI325X, MI300X, MI300A	✔️	✔️
gfx950	MI355X, MI350X	✔️	✔️
gfx1100	Radeon RX 7900 XTX/XT/GRE, Radeon PRO W7900 (Dual Slot), Radeon PRO W7800 (48GB)	✔️
gfx1150	Radeon 890M/880M iGPU	✔️
gfx1151	Radeon 8060S/8050S/8040S iGPU	✔️
gfx1152	Radeon 860M/840M iGPU	✔️
gfx1153	TBA	✔️
gfx1200	Radeon RX 9060 (XT)	✔️
gfx1201	Radeon RX 9070 (XT/GRE), Radeon AI PRO R9700 (D/S)	✔️
gfx1250	TBA	✔️

For more information on GPU hardware specifications, check out ROCm documentation.

Build and Install

Build and Install Origami (Python)

Origami provides Python bindings that allow you to use Origami's functionality directly from Python.

Installation

Install directly from the rocm-libraries repository (this could take some time due to the size of the rocm-libraries repo):

pip install git+https://github.com/ROCm/rocm-libraries.git#subdirectory=shared/origami/python

To efficiently install directly from the rocm-libraries repository use do the following:

TEMP_DIR=$(mktemp -d)
git clone --no-checkout --filter=blob:none --sparse https://github.com/ROCm/rocm-libraries.git $TEMP_DIR
git -C $TEMP_DIR sparse-checkout set shared/origami
git -C $TEMP_DIR checkout develop
pip install $TEMP_DIR/shared/origami/python -v
rm -rf $TEMP_DIR

If you have already cloned the repository:

cd shared/origami/python
pip install -e .

The build system uses pyproject.toml with scikit-build-core, which integrates with CMake for building the Python bindings.

CMake Build (Alternative)

When building with CMake, you'll need to manually install the Python dependencies listed in shared/origami/python/requirements.txt:

pip install -r shared/origami/python/requirements.txt

Build Python bindings using CMake from the shared/origami directory:

cd shared/origami

# configure with python bindings and tests enabled 
cmake -S . -B build/ \
  -DCMAKE_PREFIX_PATH=/opt/rocm \
  -DCMAKE_CXX_COMPILER=/opt/rocm/bin/amdclang++ \
  -DCMAKE_INSTALL_PREFIX=/opt/rocm \
  -DORIGAMI_ENABLE_PYTHON=ON \
  -DORIGAMI_BUILD_TESTING=ON

# build 
cmake --build build/ --parallel

# run tests
cd build/
ctest --output-on-failure

Build and Install Origami (C++)

Build the C++ library from the shared/origami directory:

cd shared/origami

# configure
cmake -S . -B build/ \
  -DCMAKE_PREFIX_PATH=/opt/rocm \
  -DCMAKE_CXX_COMPILER=/opt/rocm/bin/amdclang++ \
  -DCMAKE_INSTALL_PREFIX=/opt/rocm

# build
cmake --build build/ --parallel

After configuring and building, run the following command to install:

# install
cmake --install build/

CMake Options

Option	Description	Default
`ORIGAMI_BUILD_SHARED_LIBS`	Build shared libraries	`ON` (standalone), `OFF` (as part of rocm-libraries)
`ORIGAMI_ENABLE_PYTHON`	Enable Python bindings	`OFF`
`ORIGAMI_BUILD_TESTING`	Enable Python binding tests	`OFF`
`ORIGAMI_ENABLE_FETCH`	Auto-fetch dependencies with FetchContent	`ON`

Origami Tests

Build and Run All Tests

Build with both C++ and Python tests enabled:

cd shared/origami

cmake -S . -B build/ \
  -DCMAKE_PREFIX_PATH=/opt/rocm \
  -DCMAKE_CXX_COMPILER=/opt/rocm/bin/amdclang++ \
  -DORIGAMI_BUILD_TESTING=ON \
  -DORIGAMI_ENABLE_PYTHON=ON

cmake --build build/ --parallel

cd build/
ctest --output-on-failure

Note

Python tests are automatically added when ORIGAMI_BUILD_TESTING=ON and ORIGAMI_ENABLE_PYTHON=ON.

Running Specific Tests

Run only C++ tests:

./build/tests/origami-tests

Run a specific C++ test by name:

./build/tests/origami-tests "Origami: select_config_mnk unit test"

Run only Python tests (from shared/origami/python):

pip install -e .
python -m pytest tests/ -v

Run Python tests excluding slow tests:

python -m pytest tests/ -m "not slow"

Run selector tests (requires torch):

python -m pytest tests/test_selector.py -v

Debug Logging

Origami includes built-in debug logging that exposes internal latency model values (cache hit rates, memory/compute latencies, tile parameters, etc.). Debug output requires the ANALYTICAL_GEMM_DEBUG=1 environment variable to activate the debug code paths.

Text Log

Write human-readable debug output to a file by setting ORIGAMI_LOG_FILE:

export ANALYTICAL_GEMM_DEBUG=1
export ORIGAMI_LOG_FILE=/tmp/origami.log

Each GEMM evaluation produces a block of key-value lines in the log file, e.g.:

[DEBUG] gemm.cpp:99 - ======== Origami Debug Info ========
[DEBUG] gemm.cpp:100 - M: 2048
[DEBUG] gemm.cpp:101 - N: 2048
...
[DEBUG] gemm.cpp:116 - total_latency: 45678.9
[DEBUG] gemm.cpp:117 - =================================

CSV Log

Write structured CSV output (one row per GEMM evaluation) by using a .csv file extension:

export ANALYTICAL_GEMM_DEBUG=1
export ORIGAMI_LOG_FILE=/tmp/origami_debug.csv

The log format is inferred from the file extension: .csv selects CSV mode, anything else selects human-readable text mode.

The CSV file contains columns for every value logged with OLOG_DEBUG, such as M, N, K, L_mem, L_compute, H_mem_l2_A, total_latency, etc. This is useful for bulk analysis of the latency model across many GEMM problems.

Accumulated rows are flushed to disk in two situations:

At process exit — the logger destructor writes any remaining rows.
On explicit flush or reconfiguration — calling Logger::flush() writes buffered rows. Calling Logger::update_from_env() also flushes before applying the new configuration. Subsequent rows are appended incrementally.

Environment Variables

Variable	Description
`ANALYTICAL_GEMM_DEBUG`	Set to `1` to enable debug code paths in the latency model
`ORIGAMI_LOG_FILE`	Path for log output; `.csv` extension selects CSV format, any other extension selects text

Contribute

If you want to submit an issue, you can do so on GitHub. To contribute to our repository, you can create a GitHub pull request.

How to Cite

If you use Origami or reference it in your research, please cite our work:

@misc{Swann:2025:TTB,
  title={{tritonBLAS}: Triton-based Analytical Approach for GEMM Kernel Parameter Selection}, 
  author={Ryan Swann and Muhammad Osama and Xiaohu Guo and Bryant Nelson and Lixun Zhang and Alex Brown and Yen Ong and Ali Yazdani and Sean Siddens and Ganesh Dasika and Alex Underwood},
  year={2025},
  eprint={2512.04226},
  archivePrefix={arXiv},
  primaryClass={cs.DC},
  url={https://arxiv.org/abs/2512.04226},
}