Fix missing opt.device on --task study

[glenn-jocher]

🛠️ PR Summary

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🌟 Summary

Performance benchmarking now supports specifying device.

📊 Key Changes

• Device argument added to the speed benchmarking function in validation script (val.py).

🎯 Purpose & Impact

• ⚙️ Allows users to define the computing device (CPU, GPU) they want to use while conducting speed benchmarks.
• 🚀 Enables better control over benchmarking tests, potentially improving the utility of the tests for different hardware configurations.
• 🤖 This could help developers and researchers to better understand model performance across various devices.