Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Cache Energy Optimization Technique for STT-RAM Last Level Cache   Last level caches (LLCs) occupy a large chip-area and there size is expected
to grow further to offset the limitations of memory bandwidth and speed. Due to
high leakage consumption of SRAM device, caches designed with SRAM consume
large amount of energy. To address this, use of emerging technologies such as
spin torque transfer RAM (STT-RAM) has been investigated which have lower
leakage power dissipation. However, the high write latency and power of it may
lead to large energy consumption which present challenges in its use. In this
report, we propose a cache reconfiguration based technique for improving the
energy efficiency of STT-RAM based LLCs. Our technique dynamically adjusts the
active cache size to reduce the cache leakage energy consumption with minimum
performance loss. We choose a suitable value of STT-RAM retention time for
avoiding refresh overhead and gaining performance. Single-core simulations have
been performed using SPEC2006 benchmarks and Sniper x86-64 simulator. The
results show that while, compared to an STT-RAM LLC of similar area, an SRAM
LLC incurs nearly 100% loss in energy and 7.3% loss in performance; our
technique using STT-RAM cache saves 21.8% energy and incurs only 1.7% loss in
performance.

8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas