SCID 5.1.0 Chess Database - ARM64 Optimized for NVIDIA DGX Spark
Hello NVIDIA Developer Community!
I’m excited to announce the release of SCID 5.1.0 (Shane’s Chess Information D
atabase) optimized specifically for ARM64 platforms, including the NVIDIA DGX
Spark!
ABOUT SCID
SCID is a powerful open-source chess database application used by chess profes
sionals and enthusiasts worldwide. It allows you to:
- Manage databases with millions of chess games
- Analyze positions with integrated chess engines
- Study openings with ECO classification
- View player statistics and tournament tables
- Prepare for your next opponent
ARM64 OPTIMIZATIONS
This release is specifically optimized for ARM64 architecture with:
✓ Native ARM64 binary (no emulation)
✓ Compiler optimizations: -O3, -march=armv8-a, LTO
✓ NEON SIMD support enabled
✓ Link-time optimization for better performance
✓ Modern ARM server optimizations (SVE2, BF16 support where available)
TESTED HARDWARE
✓ NVIDIA DGX Spark ARM
✓ AWS Graviton3
✓ Ampere Altra
✓ Generic ARM64 Linux systems
DOWNLOAD
Download: Releases · EquaCoin/SCID-5.1.0-ARM64-MarcoSaba-2026 · GitHub
/download/v5.1.0-arm64/SCID-5.1.0-ARM64-MarcoSaba-2026.zip
Size: 7.8 MB
License: GPL-2.0 (same as original SCID)
QUICK START
# Extract
unzip SCID-5.1.0-ARM64-MarcoSaba-2026.zip
# Run
cd SCID-5.1.0-ARM64-MarcoSaba-2026/scid-5.1.0-arm64
./scid
INSTALL DEPENDENCIES (if needed)
════════════════════════════════
Ubuntu/Debian: sudo apt-get install tcl tk libx11-6 zlib1g
Or install system-wide: sudo cp scid /usr/local/bin/ sudo cp -r tcl /usr/local
/share/scid/ sudo cp scid.eco /usr/local/share/scid/
PERFORMANCE
═══════════
This ARM64 build takes full advantage of:
• ARM NEON SIMD instructions
• 64-bit ARM architecture
• Optimized memory access patterns
• Fast integer matrix operations (I8MM)
The result is a smooth, responsive chess database experience on ARM platforms!
CREDITS
═══════
ARM64 Version: Marco Saba, February 2026 Original SCID: Shane Hudson, Pascal G
eorges, Fulvio Benini
The ARM64 optimizations include modified build scripts that auto-detect the pl
atform and apply the best compiler flags for your specific ARM64 CPU (Jetson,
Graviton, Ampere, etc.)
FEEDBACK
════════
I'd love to hear your feedback! If you test this on your ARM64 system (especia
lly Jetson or DGX platforms), please let me know how it performs.
RESOURCES
═════════
• Source Code: https://github.com/EquaCoin/SCID-5.1.0-ARM64-MarcoSaba-2026
• Original SCID: http://scid.sourceforge.net/
• This Release: https://github.com/EquaCoin/SCID-5.1.0-ARM64-MarcoSaba-2026/re
ases/tag/v5.1.0-arm64
Enjoy your chess analysis on ARM64! ♟️
────────────
Marco Saba February 2026
