Channels for RAM are like lanes on a highway, if you have a four-lane highway where only one lane is used you lose throughput and/or capacity. For optimal performance each RAM Channel must be utilized based on the motherboard manufacture recommendations for RAM slot population. Itasca software are very dependent on RAM bandwidth. Performance issues occur when RAM becomes 100% utilized, causing swap functions to occur between the hard drive and RAM. ![]() RAM is used by Itasca programs to store the model while the model it is running, larger models require larger RAM. Therefore, the optimal configuration is a single physical processor with a high core count and clock speed for single model run. However, running a single model does not see significant performance gains from multiple physical CPUs. Internal testing has shown that two physical processor chips will benefit when running two models in parallel rather than in a series. System configurations could have two physical processor chips, each being multi-core with hyper-threading. Most, but not all, features of all the software have been made multi-threaded those features that are not multithreaded will not benefit from multi-core or multi-processor systems. The current versions of 3DEC, FLAC2D, FLAC3D, MassFlow, PFC, and UDEC are multi-threaded. Itasca does not configure compiler settings for optimization to any specific CPU. The real-world performance of a processor is affected by hardware and software configurations the same model processor may perform quite differently from one computer to the next, based on hardware choice and software configuration. Unfortunately, these ratings are difficult to compare between manufacturers (i.e., Intel and AMD). Processor models are labelled from the manufacture based on architecture, speed, and generation. General rule: A faster processor will enable Itasca software to calculate faster. Itasca does not guarantee the performance of any system or configuration. Many hardware configurations are possible. These can be found on each software web page under System Requirements. A recommended system is also suggested for each software. These are the lowest hardware specifications that can be used to run the software, but with no expectation of performance. The information provided represents our best guidance of appropriate hardware to support the running of Itasca software.įor each Itasca program ( 3DEC, FLAC2D, FLAC3D, MassFlow, PFC, and UDEC), a set of minimum system requirements is provided. ![]() We recognize that the purchase of Itasca software represents a significant commitment on the part of our users and that users are understandably interested in ensuring they have the optimum computer system for running an Itasca software.
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