Hi,
I always meed some linear system with condition number near 1e10, the ksp 
solver (BCGSL + ASM + ILU(1))with double presision
seems painful to convergence.

Will float 128 helps in this situation? 
And how about the performance degenerate for float 128 under i.e. XEON 5620 CPU 
compared with double?

Thanks
Gong Ding

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