#PRIVATE CACHE SOFTWARE SIMULATOR#

Low-radix networks, such as 2D-MESH, are widely used in tiled CMPs since they can be mapped to on-chip networks efficiently. Most CMPs use on-chip networks to connect cores and tend to integrate more simple cores on a single die. This organisation is better performing and scales better as the cut-through latency increases, thus simplifying the implementation of routers, and it is also more effective than another latency reduction solution proposed in literature (hybrid network).

As a consequence, in this work we propose an alternative clustered NUCA organisation that limits the average number of hops experienced by cache accesses. The results indicate that the sensitivity of the system to the cut-through latency is very high, thus limiting the effectiveness of the NUCA solution, and that modest buffering capacity is sufficient to achieve a good performance level.

#PRIVATE CACHE SOFTWARE SIMULATOR#

The entire analysis is performed utilising a cycle-accurate execution-driven simulator of the entire system and real workloads. This work analyses how different parameters for the network routers, namely cut-through latency and buffering capacity, affect the overall performance of NUCA-based systems for the single processor case, assuming a reference NUCA organisation proposed in literature. Typically, NUCA caches employ a switched network, made up of links and routers with buffered queues, to connect the different sub-banks and the cache controller, and the characteristics of the network elements may affect the performance of the entire system. Their structure is partitioned into sub-banks and the resulting access latency is a function of the physical position of the requested data. Non-uniform cache architectures (NUCAs) are a novel design paradigm for large last-level on-chip caches, which have been introduced to deliver low access latencies in wire-delay-dominated environments. As the improvement in the energy efficiency of individual transistor devices lags behind the growth in their integration capacity, the dissertation finds that the SAF is monotonically decreasing in each successive technology generation.

Denoted as the Simultaneously Active Fraction (SAF), this metric represents the fraction of the entire chip resources that can be active simultaneously, given a target power envelope. This dissertation proposes a model to capture the first order impact of the power constraint in the architectural design. In the landscape of general purpose processors, such power limited designs designate a significant paradigm shift from the area limited designs of the past several decades. In particular, the power constraint is rapidly becoming one of the first order design considerations in microprocessor designs. With this tremendous growth, however, comes a whole new set of engineering challenges involving power density, thermal efficiency, and so on. If you need to clear your cache, cookies, and history for troubleshooting purposes, but aren't yet prepared to lose the content listed above, you may wish to consider using a private browsing window in your preferred browser as a temporary solution.Technology scaling has provided system designers with an exploding transistor budget, far more than what was available when the core principles behind many existing commodity microprocessors were envisioned. If you are unable to do so, see Troubleshooting alternatives below.įor information about your web browser's cache, cookies, and history, see the following Wikipedia pages: While you should clear your web browser's cache, cookies, and history periodically in order to prevent or resolve performance problems, you may wish to record some of your saved information first. Clearing your web browser's cache, cookies, and history may remove data such as the following:

Private cache software