Sorting 134217728 values Rows: Parallel sorting threshold fraction Columns: Parallel partitioning threshold fraction 1 2 4 8 16 MLim HLim 1 21.41 - - - - 2.67625 1.338125 2 20.56 13.80 - - - 2.67625 1.338125 4 9.72 9.39 8.83 - - 2.67625 1.338125 8 7.09 7.40 7.73 11.69 - 2.67625 1.338125 16 5.36 5.43 4.61 6.48 6.03 2.67625 1.338125 32 3.73 4.30 4.48 4.46 4.96 2.67625 1.338125 64 3.45 3.61 3.70 4.21 4.33 2.67625 1.338125 128 3.18 3.55 3.88 3.77 5.06 2.67625 1.338125 256 3.16 3.49 3.47 3.95 4.20 2.67625 1.338125 512 3.15 3.46 3.39 4.90 5.19 2.67625 1.338125 1024 3.18 3.45 3.66 3.76 4.85 2.67625 1.338125 2048 3.33 3.69 3.62 4.01 5.03 2.67625 1.338125 4096 3.63 4.02 4.12 4.11 4.59 2.67625 1.338125 8192 4.44 4.83 4.94 5.27 5.47 2.67625 1.338125 16384 5.92 6.28 6.68 6.52 7.47 2.67625 1.338125