206 citations · 364 across the 6 of their papers we have counts for
6 papers
Does 3D frequency-domain FWI of full-azimuth/long-offset OBN data feasible? The Gorgon case study
S. Operto, P. Amestoy, H. S. Aghamiry +13
Frequency-domain Full Waveform Inversion (FWI) is potentially amenable to efficient processing of full-azimuth long-offset stationary-recording seabed acquisition carried out with…
INTEGRAL/SPI data segmentation to retrieve source intensity variations
L. Bouchet, P. -R Amestoy, A. Buttari +2
The INTEGRAL/SPI, X-gamma-ray spectrometer (20 keV - 8 MeV) is an instrument for which recovering source intensity variations is not straightforward and can constitute a difficulty…
Simultaneous analysis of large INTEGRAL/SPI datasets: optimizing the computation of the solution and its variance using sparse matrix algorithms
L. Bouchet, P. Amestoy, A. Buttari +2
Nowadays, analyzing and reducing the ever larger astronomical datasets is becoming a crucial challenge, especially for long cumulated observation times. The INTEGRAL/SPI X-gamma-ra…
Accelerating Scientific Computations with Mixed Precision Algorithms
Marc Baboulin, Alfredo Buttari, Jack Dongarra +5
On modern architectures, the performance of 32-bit operations is often at least twice as fast as the performance of 64-bit operations. By using a combination of 32-bit and 64-bit f…
A Class of Parallel Tiled Linear Algebra Algorithms for Multicore Architectures
Alfredo Buttari, Julien Langou, Jakub Kurzak +1
As multicore systems continue to gain ground in the High Performance Computing world, linear algebra algorithms have to be reformulated or new algorithms have to be developed in or…
Parallel Tiled QR Factorization for Multicore Architectures
Alfredo Buttari, Julien Langou, Jakub Kurzak +1
As multicore systems continue to gain ground in the High Performance Computing world, linear algebra algorithms have to be reformulated or new algorithms have to be developed in or…