TY - JOUR
T1 - Distributed memory parallel computing of three-dimensional variable-density groundwater flow and salt transport
AU - Verkaik, J.
AU - van Engelen, J.
AU - Huizer, S.
AU - Bierkens, Marc F.P.
AU - Lin, H.X.
AU - Oude Essink, G.H.P.
PY - 2021
Y1 - 2021
N2 - Fresh groundwater reserves, being of vital importance for more than a billion of people living in the coastal zone, are being threatened by saltwater intrusion due to anthropogenic activities and climate change. High resolution three-dimensional (3D), variable-density (VD), groundwater flow and salt transport (FT) numerical models are increasingly being used to support water managers and decision makers in their strategic planning and measures for dealing with the problem of fresh water shortages. However, these computer models typically require long runtimes and large memory usage, making them impractical to use without parallelization. Here, we parallelize SEAWAT, and show that with our parallelization 3D-VD-FT modeling is now feasible for a wide range of hydrogeologists, since a) speedups of more than two orders of magnitude can be obtained as illustrated in this paper, and b) large 3D-VD-FT models are feasible with memory requirements far exceeding single machine memory.
AB - Fresh groundwater reserves, being of vital importance for more than a billion of people living in the coastal zone, are being threatened by saltwater intrusion due to anthropogenic activities and climate change. High resolution three-dimensional (3D), variable-density (VD), groundwater flow and salt transport (FT) numerical models are increasingly being used to support water managers and decision makers in their strategic planning and measures for dealing with the problem of fresh water shortages. However, these computer models typically require long runtimes and large memory usage, making them impractical to use without parallelization. Here, we parallelize SEAWAT, and show that with our parallelization 3D-VD-FT modeling is now feasible for a wide range of hydrogeologists, since a) speedups of more than two orders of magnitude can be obtained as illustrated in this paper, and b) large 3D-VD-FT models are feasible with memory requirements far exceeding single machine memory.
KW - Distributed memory
KW - Numerical modelling
KW - Parallel computing
KW - Salt transport
KW - SEAWAT
KW - Variable-density groundwater flow
UR - http://www.scopus.com/inward/record.url?scp=85108248534&partnerID=8YFLogxK
U2 - 10.1016/j.advwatres.2021.103976
DO - 10.1016/j.advwatres.2021.103976
M3 - Article
AN - SCOPUS:85108248534
SN - 0309-1708
VL - 154
SP - 1
EP - 3
JO - Advances in Water Resources
JF - Advances in Water Resources
M1 - 103976
ER -