Agisoft Ortho Mapping Exception: cudaMemGetInfo: out of memory

📌 Problem

Attempting to run Agisoft Ortho Mapping results in the, "Exception: cudaMemGetInfo(&free_mem_size, &total_mem_size): out of memory (2) at line 40(free memory unknown: out of memory (2))"

 🧠 What does that mean

The error indicates that Metashape, which is a CUDA-enabled application (uses a GPU for computation), when available, is running out of available GPU memory.

🔍 Common Causes

1. Data too large: You're trying to load a dataset that exceeds the available GPU memory. 
2. Memory fragmentation: Even if total memory is sufficient, fragmented memory can prevent large allocations. 
3. Memory leak: Previous operations may not have released memory properly. 
4. Multiple processes: Other applications or processes may be using the GPU.

✅ Probable Resolutions

1. Check GPU Memory Usage

   • Use the GPU monitoring in task manager (Windows) to see how much memory is being used and by which processes.

2. Free Up GPU Memory

   • Before running Agisoft Ortho Mapping , close other GPU-intensive apps.
   • Sometimes lingering memory allocations can only be cleared by restarting the machine.

3. Reduce Processing Load

   • Lower image resolution before processing. 
   • Use fewer images if possible.
   • Downscale depth maps: Try increasing the downscale value (e.g., 4 or 8) to reduce memory usage.

📬 Need Help?

If you're still stuck, please Contact Support for assistance.