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dino.celebic 2025-11-13 13:17:09 +01:00
commit e662f3c84b
9 changed files with 38 additions and 37 deletions
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ex3/ex3_results.txt
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@ -183,20 +183,20 @@ A * x =
0.000000 1.000000
N = | 1 | 2 | 4 | 8 | 16 | 32
---------|--------|--------|--------|--------|--------|-------
Nrhs = 2 | 0.0047 | 0.0045 | 0.0046 | 0.0130 | 0.0203 | 0.0476
Nrhs = 4 | 0.0027 | 0.0031 | 0.0033 | 0.0046 | 0.0085 | 0.0250
Nrhs = 8 | 0.0035 | 0.0035 | 0.0045 | 0.0061 | 0.0119 | 0.0300
Nrhs = 16 | 0.0085 | 0.0062 | 0.0221 | 0.0113 | 0.0599 | 0.0757
Nrhs = 32 | 0.0122 | 0.0165 | 0.0112 | 0.0123 | 0.0238 | 0.0834
Nrhs = 64 | 0.0072 | 0.0078 | 0.0164 | 0.0133 | 0.0421 | 0.0666
Nrhs = 128 | 0.0073 | 0.0189 | 0.0269 | 0.0199 | 0.0337 | 0.1041
Nrhs = 256 | 0.0107 | 0.0135 | 0.0279 | 0.0351 | 0.0582 | 0.1438
Nrhs = 512 | 0.0276 | 0.0174 | 0.0237 | 0.1027 | 0.1113 | 0.2417
Solution time per right hand side in milliseconds: sec*1000/Nrhs
N = | 1 | 2 | 4 | 8 | 16 | 32
------------|--------|--------|--------|--------|--------|-------
Nrhs = 2000 | 0.2122 | 0.0048 | 0.0079 | 0.0544 | 0.0850 | 0.1523
Nrhs = 4000 | 0.0036 | 0.0053 | 0.0085 | 0.0142 | 0.0748 | 0.1596
Nrhs = 6000 | 0.0033 | 0.0043 | 0.0069 | 0.0147 | 0.0327 | 0.1801
Nrhs = 8000 | 0.0036 | 0.0041 | 0.0069 | 0.0197 | 0.0342 | 0.1795
Nrhs = 10000 | 0.0028 | 0.0042 | 0.0067 | 0.0140 | 0.0328 | 0.1883
Nrhs = 12000 | 0.0025 | 0.0044 | 0.0067 | 0.0157 | 0.0320 | 0.1981
Nrhs = 14000 | 0.0023 | 0.0038 | 0.0065 | 0.0157 | 0.0333 | 0.1916
Nrhs = 16000 | 0.0022 | 0.0036 | 0.0073 | 0.0140 | 0.0324 | 0.1824
Nrhs = 18000 | 0.0028 | 0.0038 | 0.0066 | 0.0145 | 0.0337 | 0.1741
For fixed n, the solution time per rhs does not slow down consistently and scales very well.
Its faster than expected.
For fixed n, the solution time per rhs stays roughly constant.
-------------- Task 8 --------------