7,263 research outputs found
Elastic-DF: Scaling Performance of DNN Inference in FPGA Clouds through Automatic Partitioning
No full textCustomized compute acceleration in the datacenter is key to the wider roll-out of applications based on deep neural network (DNN) inference. In this article, we investigate how to maximize the performance and scalability of field-programmable gate array (FPGA)-based pipeline dataflow DNN inference accelerators (DFAs) automatically on computing infrastructures consisting of multi-die, network-connected FPGAs. We present Elastic-DF, a novel resource partitioning tool and associated FPGA runtime infrastructure that integrates with the DNN compiler FINN. Elastic-DF allocates FPGA resources to DNN layers and layers to individual FPGA dies to maximize the total performance of the multi-FPGA system. In the resulting Elastic-DF mapping, the accelerator may be instantiated multiple times, and each instance may be segmented across multiple FPGAs transparently, whereby the segments communicate peer-to-peer through 100 Gbps Ethernet FPGA infrastructure, without host involvement. When applied to ResNet-50, Elastic-DF provides a 44% latency decrease on Alveo U280. For MobileNetV1 on Alveo U200 and U280, Elastic-DF enables a 78% throughput increase, eliminating the performance difference between these cards and the larger Alveo U250. Elastic-DF also increases operating frequency in all our experiments, on average by over 20%. Elastic-DF therefore increases performance portability between different sizes of FPGA and increases the critical throughput per cost metric of datacenter inference. Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Computer Engineerin
Unsupervised hierarchical clustering ordered by the adjusted level of miRNA expression for the top 50 most expressed miRNAs in ovaries of df/df (n = 10; Young–DY and Old–DO) and N mice (n = 10; Young–NY and Old–NO).
No full textUnsupervised hierarchical clustering ordered by the adjusted level of miRNA expression for the top 50 most expressed miRNAs in ovaries of df/df (n = 10; Young–DY and Old–DO) and N mice (n = 10; Young–NY and Old–NO).</p
Dann (TC), Roberts (DF) — Menarcheal age in university of Warwick young women
No full textHoudaille Jacques. Dann (TC), Roberts (DF) — Menarcheal age in university of Warwick young women. In: Population, 49ᵉ année, n°2, 1994. pp. 546-547
Hydrodynamical turbulence by fractal fourier decimation
No full textWe present a systematic numerical investigation of high-resolution 3D isotropic and homogeneous turbulence resolved on a decimated set of Fourier modes. Fractal decimation acts to decrease the effective dimensionality of the flow by allowing triadic interactions only in a set of Fourier modes N(k) proportional to k^DF for large k. While keeping the symmetries of the original 3D Navier-Stokes equations unchanged, a dramatic change in small-scale statistics is detected at decreasing the fractal dimension DF . Already at fractal dimension DF = 2.8, a global self-similar behaviour is observed in the inertial range of scales, the consequence of such transition are the restoration of the scaling symmetry and vorticity distribution that becomes close to Gaussian. We relate the results to the different roles of local vs non-local interactions in the energy transfer range
'Response by the author, Daniel F. Vukovich.'
No full textResponse by the author (Vukovich) to a review of Illiberal China (my 2019 monograph
Characteristics of DF.
No full text<p>(A) DF induced by hot pick killing in young WT adult (<i>N</i> = 87), L4 (<i>N</i> = 26), and male <i>C. elegans</i> (<i>N</i> = 25), and in other nematode species <i>C. briggsae</i> (<i>N</i> = 26) and <i>P. pacificus</i> (<i>N</i> = 49). ± SD, ***<i>p</i><0.001. L4 larvae and adult males show smaller increases in DF than adult hermaphrodites, perhaps due to their smaller size. (B) Typical fluorescence increase in young adult worm killed by a hot pick. (C) Fluorescence increases in an anterior to posterior wave. Figure shows mean fluorescence intensity (values normalized to highest value in each individual) at 5 points along the intestine of animals dying of old age (<i>N</i> = 29). Due to individual variation (range, 1 h 55 min–5 h 30 min, mean ∼3 h), the duration of each observation was divided into 5 equal points for measurement. T = 0 is the point at which time-lapse photography of dying (late stage C) worms was initiated. (D) DF will not propagate in a posterior to anterior wave. Head, int1 and int2 anterior intestinal cells; tail, int9 posterior intestinal cells.</p
DF AND HF LASER SPECTRA
No full textW. B. Roh and K. Narahari Rao, J. Mol. Spectrosc. 49, 317 (1974).""Author Institution: Department of Physics, The Ohio State University; Department of Electrical Engineering, The Ohio State UniversityA pulsed laser was used as a source to study DF and HF infrared laser spectra with a grating spectrometer. The rotational structure observed for the 1-0, 2-1, and 3-2 bands of DF, and the 1-0 and 2-1 bands of HF has been measured by following a procedure similar to that used for the CO laser Molecular constants derived by combining these laser measurements with other available data will be presented
Four Unidentified Young Women
No full textThis portrait of four unidentified young women was taken by photographer Henry A. Lineback in his Salem studio. The young women may have been students at Salem Academy and College
Specific PIWI-Interacting RNAs and Related Small Noncoding RNAs are Associated with Ovarian Aging in Ames Dwarf (df/df) Mice
No full textThe Ames dwarf (df/df) mouse is a well-established model for delayed aging. MicroRNAs (miRNAs), the most studied small noncoding RNAs (sncRNAs), may regulate ovarian aging to maintain a younger ovarian phenotype in df/df mice. In this study, we profile other types of ovarian sncRNAs, PIWI-interacting RNAs (piRNAs) and piRNA-like RNAs (piLRNAs), in young and aged df/df and normal mice. Half of the piRNAs derive from transfer RNA fragments (tRF-piRNAs). Aging and dwarfism alter the ovarian expression of these novel sncRNAs. Specific tRF-piRNAs that increased with age might target and decrease the expression of the breast cancer antiestrogen resistance protein 3 (BCAR3) gene in the ovaries of old df/df mice. A set of piLRNAs that decreased with age and map to D10Wsu102e mRNA may have trans-regulatory functions. Other piLRNAs that decreased with age potentially target and may de-repress transposable elements, leading to a beneficial impact on ovarian aging in df/df mice. These results identify unique responses in ovarian tissues with regard to aging and dwarfism. Overall, our findings highlight the complexity of the aging effects on gene expression and suggest that, in addition to miRNAs, piRNAs, piLRNAs, tRF-piRNAs, and their potential targets can be central players in the maintenance of a younger ovarian phenotype in df/df mice
OPTOACOUSTIC MEASUREMENT OF DF LASER ABSORPTION BY METHANE
No full textAuthor Institution:An optoacoustic system has been constructed for measurement of absorption of DF laser radiation. Absorption by methane in Argon and Nitrogen has been measured at 15 DF laser lines in the 3.6 – 4.0 region. Construction and calibration of the spectrophone will be discussed
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