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.obsidian/plugins/various-complements/histories.json vendored
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UNB/Year 5/Semester 2/CS4745/Lecture Notes.md
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Embarrassingly parallel: Problem which can be parallelized by simply allocating more hardware resources. Embarrassingly parallel: Problem which can be parallelized by simply allocating more hardware resources.
### Word Count with Map Reduce ### Word Count with Map Reduce
Each thread can map a document of a word to a count, which after completion can be reduced to one map from each thread, usually with a parallel hash table. Each thread can map a document of a word to a count, which after completion can be reduced to one map from each thread, usually with a parallel hash table.
## Memory Schemes
Multicore systems, ones which have the ability to compute multiple tasks at the same time in a shared memory environment are often latency oriented, with the start and stop time of results being minimized, as well as the time between results is minimized.
Manycore systems, ones which are often a large number of cores tasked with the same problem, in a shared memory environment are often throughput oriented, with the amount computation being higher amortized over a period of time, or focusing on longer running tasks/computation.
### Distributed Memory
The tasks are not within the same memory space, and do not share memory addresses, and there is no need for communication between nodes