In els-cas-templates v2.1, the documentation says that biblatex plus biber is recommended. However, if we actually try to use biblatex, the compilation fails.

I rarely use cloud-based HPC clusters for scientific simulations because they are just too expensive. I usually have access to clusters at different high-performance computing centers. But those clusters have one serious problem: too many people are waiting in the queue for resources. It’s not uncommon for me to wait a day, or even several days, for my jobs to start after I submit them.

I had been having a packet loss issue with my XPS 13 7390 when connecting to my home 5GHz WiFi. The connection was fine. I could use the internet normally without any problem. But whenever I wanted to ping something, the results always showed a lot of packet loss. Even when I ping the machines in the same LAN, it was the same. The WiFi card of XPS 13 7390 is Intel Wi-Fi 6 AX200, and my router is NETGEAR Nighthawk AC1750. Turns out these have nothing to do with the packet loss issue. Not sure why, but I found (by trial-and-error) the power management/saving of the internet interface is the culprit (do not be confused with the WiFi card’s power saving). There are several ways to disable power management. **Option 1:

Warning messages:

(Please correct me if my understanding is incorrect.) Today I checked the log of my system and noticed this line of warning.

Ever since I posted these two articles (here and here) about using ProtonMail Bridge on a headless WordPress/Linux server, ProtonMail Bridge has changed quite a bit.

To be clear

I recently read a Reddit post asking whether an Intel Optane SSD can be used for swap space in Linux. I didn’t really care about the question itself or the answer. I was just waiting for my bus at a bus stop and browsing random posts online.