What is CUDA? General purpose computing on graphical processing units.

What is OpenGL OpenGL (Open Graphics Library[3]) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics. The API is typically used to interact with a graphics processing unit (GPU), to achieve hardware-accelerated rendering.

Concurrent programming with GPUs

Multiprocessing/Parallel/Concurrent programming are synonymous

What are cores?

What are threads? https://www.guru99.com/cpu-core-multicore-thread.html

Difference between Core vs. Threads

Parameters	Core	Threads
Definition	CPU cores mean the actual hardware component.	Threads refer to the virtual component which manages the tasks.
Process	The CPU is fed tasks from a thread. Therefore, it only accesses the second thread when the information sent by the first thread is not reliable.	There are many different variations of how CPU can interacts with multiple threads.
Implementation	Achieved through interleaving operation	Performed through suing multiple CPU’S
Benefit	Increase the amount of work accomplished at a time.	Improve throughput, computational speed-up.
Make use of	Core uses content switching	Uses multiple CPUs for operating numerous processes.
Processing units required	Requires only signal process unit.	Requires multiple processing units.
Example	Running multiple application at the same time.	Running web crawler on a cluster.

Common Pitfall in Concurrent Programming - Race Conditions - Resource contention - dead Lock - live lock - non-optimal resource utilization

Concurrent Programming Problems and Algorithms