Hi, I've been testing giraph out-of-core functionality with the pagerank example on HDD and SSD storage. In the large majority of my experiments, there is almost no difference (within 2 to 3%) in the benchmark execution time between storing partitions and messages in either of the two mediums.
So I'm wondering if there are any tunables that I can customize to extract the maximum out-of-core performance on SSDs. I can also take a shot at making code modifications if someone familiar with the out-of-core implementation has any suggestions. Thanks, Mukil