Global seismic tomography and modern parallel computers

Main Article Content

G. Soldati
L. Boschi
A. Piersanti


A fast technological progress is providing seismic tomographers with computers
of rapidly increasing speed and RAM, that are not always properly taken
advantage of. Large computers with both shared-memory and distributedmemory
architectures have made it possible to approach the tomographic
inverse problem more accurately. For example, resolution can be quantified
from the resolution matrix rather than checkerboard tests; the covariance
matrix can be calculated to evaluate the propagation of errors from data to
model parameters; the L-curve method can be applied to determine a range
of acceptable regularization schemes. We show how these exercises can be
implemented efficiently on different hardware architectures.

Article Details

How to Cite
Soldati, G., Boschi, L. and Piersanti, A. (2006) “Global seismic tomography and modern parallel computers”, Annals of Geophysics, 49(4-5). doi: 10.4401/ag-4407.