An artificial finite-element model consisting of a finely gridded geodesic dome clamped to a coarsely gridded rectangular base. Because of the difference in gridding factors, the interface nodes on the base have a very high order. Stockmeyer are nearly a factor of two away from obtaining the minimum bandwidth of this problem. General sparse methods fair well despite the strange gridding. My browser can't read the compressed data files.
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Click on label to get an explanation. Structure Plot Matrix Statistics Click on label to get an explanation. Top 10 out of 699 nonvoid diagonals. Conditioning Pattern matrix. No conditioning information.