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Publications associées (175)

Tunnel Field Effect Transistors

The aim of this work has been the investigation of homo-junction Tunnel Field Effect Transistors starting from a compact modelling perspective to its possible applications. Firstly a TCAD based simulation study is done to explain the main device characteri ...

EPFL2015

Sort vs. Hash Join Revisited for Near-Memory Execution

Babak Falsafi, Boris Robert Grot, Yusuf Onur Koçberber, Nooshin Sadat Mirzadeh

Data movement between memory and CPU is a well-known energy bottleneck for analytics. Near-Memory Processing (NMP) is a promising approach for eliminating this bottleneck by shifting the bulk of the computation toward memory arrays in emerging stacked DRAM ...

2015

Sort vs. Hash Join Revisited for Near-Memory Execution

Babak Falsafi, Boris Robert Grot, Yusuf Onur Koçberber, Nooshin Sadat Mirzadeh

2015

Databases and Hardware: The Beginning and Sequel of a Beautiful Friendship

Anastasia Ailamaki

Fast query and transaction processing is the goal of 40 years of database research and the reason of existence for many new database system architectures. In data management, system performance means acceptable response time and throughput on critical-path ...

2015

Experimental Demonstration and Tolerancing of a Large-Scale Neural Network (165 000 Synapses) Using Phase-Change Memory as the Synaptic Weight Element

Irem Boybat Kara, Severin Sidler, Carmelo Di Nolfo

Using two phase-change memory devices per synapse, a three-layer perceptron network with 164 885 synapses is trained on a subset (5000 examples) of the MNIST database of handwritten digits using a backpropagation variant suitable for nonvolatile memory (NV ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Scaling Up Concurrent Main-Memory Column-Store Scans: Towards Adaptive NUMA-aware Data and Task Placement

Anastasia Ailamaki, Iraklis Psaroudakis

Main-memory column-stores are called to efficiently use modern non-uniform memory access (NUMA) architectures to service concurrent clients on big data. The efficient usage of NUMA architectures depends on the data placement and scheduling strategy of the ...

2015

Exploiting NVM in Large-scale Graph Analytics

Willy Zwaenepoel, Jasmina Malicevic

Data center applications like graph analytics require servers with ever larger memory capacities. DRAM scaling, how- ever, is not able to match the increasing demands for ca- pacity. Emerging byte-addressable, non-volatile memory technologies (NVM) offer a ...

2015

Configuring Spatial Grids for Efficient Main Memory Joins

Anastasia Ailamaki, Thomas Heinis, Farhan Tauheed

The performance of spatial joins is becoming increasingly important in many applications, particularly in the scientific domain. Several approaches have been proposed for joining spatial datasets on disk and few in main memory. Recent results show that in ...

Springer-Verlag Berlin2015

Coherent creation and destruction of orbital wavepackets in Si:P with electrical and optical read-out

The ability to control dynamics of quantum states by optical interference, and subsequent electrical read-out, is crucial for solid state quantum technologies. Ramsey interference has been successfully observed for spins in silicon and nitrogen vacancy cen ...

Nature Publishing Group2015

Libra: Software-Controlled Cell Bit-Density to Balance Wear in NAND Flash

Paolo Ienne, David Novo Bruna, Xavier Jimenez

Hybrid flash storages combine a small Single-Level Cell (SLC) partition with a large Multilevel Cell (MLC) partition. Compared to MLC-only solutions, the SLC partition exploits fast and short local write updates, while the MLC part brings large capacity. O ...

Assoc Computing Machinery2015

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