How GPU-Accelerated Annotation is Changing Genetic Analysis

The GPU Revolution in Genetic Analysis

Genetic variant analysis has been dependent on CPU-based systems for years. Matching ~50,000 variants from an exome sequencing against 15 reference databases could take hours or even days with traditional methods.

Allelyn fundamentally changes this process with its JAX-based GPU annotation engine running on NVIDIA DGX Spark.

How It Works

• Variant Key Encoding: Each variant (chrom, pos, ref, alt) is encoded into a 64-bit integer using FNV-1a hash
• Sorted NumPy Arrays: Databases are loaded as pre-sorted .npy files
• GPU Binary Search: np.searchsorted() performs O(log N) lookups
• Batch Processing: All variants are processed in parallel on the GPU

Performance Comparison

Method	50,000 Variants	5,000,000 Variants
SQLite (CPU)	~30 minutes	~5 hours
Allelyn GPU	< 1 second	< 10 minutes

Conclusion

GPU-accelerated annotation is fundamentally transforming genetic laboratory workflows. With Allelyn, going from FASTQ to a signed clinical report in 45 minutes is now possible.