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Tinkering

Troubleshooting High SoftIRQ on Azure B-Series Virtual Machines

High SoftIRQ on Azure B-Series VM was observed. Investigation revealed that the CPU credits had been exhausted.

Nov 07, 2024
2 minute read
Linux
Tinkering

Azure Linux Server Auto-reboot Issue

Troubleshooting Azure Linux server auto-reboot issue. The cause is Azure auto-installing patches and rebooting the server.

Sep 15, 2024
1 minute read
Linux
Learning

Debugging: Neural Network Training Starts with High Accuracy then Decreases

A strange phenomenon where neural network training starts with high accuracy and gradually decreases. The root cause: not setting shuffle=True.

Aug 18, 2024
2 minute read
AI
Learning

Troubleshooting ROCm Errors in the PyTorch Environment on Setonix

Setonix is a hybrid CPU-GPU supercomputer housed at the Pawsey Centre in Western Australia. This post documents troubleshooting steps for PyTorch and ROCm errors on Setonix.

Jul 12, 2024
4 minute read
Linux , HPC
Learning

Summary of Complexity for Various Data Structures and Algorithms

Summary of complexity for various data structures and algorithms, including selection sort, insertion sort, merge sort, quicksort, heapsort, tree sort, heap, binary search tree, and quickselect.

Apr 20, 2024
2 minute read
Data Structures and Algorithms
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