How can I fix this? 2. The clock on my Sun has stopped working. When I turn off the machine it loses track of the time and/or complains about invalid TOD when I turn it on. How do I get my clock to keep time when the system is off? 3. I get warnings about by NVRAM battery being low when I boot my machine but otherwise it works nicely. Should I be worried? 4. When my Sun boots I get warnings about the IDPROM checksum being incorrect and/or Invalid format type in NVRAM. What does this mean and how can I fix it? 5. The hostid and/or ethernet address on my Sun have been corrupted. How can I restore it to a sane state? 6. How do I change the hostid and/or ethernet address of my Sun workstation? 7. My Sun is in full-security mode (can't even boot without password) and I don't know the EEPROM password.
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Parallel computing is a type of computation in which many calculations or processes are carried out simultaneously. Large problems can often be divided into smaller ones, which can then be solved at the same time. There are several different forms of parallel computing: bit-level, instruction-level, data, and task parallelism. Parallelism has long been employed in high-performance computing, but has gained broader interest due to the physical constraints preventing frequency scaling. Parallel computing is closely related to concurrent computing-they are frequently used together, and often conflated, though the two are distinct: it is possible to have parallelism without concurrency, and concurrency without parallelism (such as multitasking by time-sharing on a single-core CPU). In parallel computing, a computational task is typically broken down into several, often many, very similar sub-tasks that can be processed independently and whose results are combined afterwards, upon completion. In contrast, in concurrent computing, the various processes often do not address related tasks; when they do, as is typical in distributed computing, the separate tasks may have a varied nature and often require some inter-process communication during execution.
The RTX 2070 Super looks the best value of the bunch, offering near-RTX 2080 performance, while the RTX 2060 Super and the RTX 2080 Super are worth a look. While the Super cards were more of a half-step up before the Ampere generation arrived, boosts to clock speeds (and in some cases the introduction of newer memory) mean these are all a tick more capable than the original models. If you can find a good deal on a PC with an RTX 20 Series Super GPU, it may be worthwhile, but not at full price. For owners of older 10-Series "Pascal" cards, it was a tough call on whether to upgrade to the 20 Series. The raw performance gains were modest, and ray-tracing, while attractive, was a difficult proposition even on the best 20 Series GPUs. If you've held out this long, with the 30 Series impressing so much, we can much more fully recommend that enthusiasts make the jump if you can find one.
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