Open Access

Table 3

Results of the scalability tests.

Test Npart Nx Wall time Peak RAM (bytes/part.)
4.1 323 3.86 ☓ 1012 31 32
64
10
31
9.52 ☓ 1012
All
123
All
10 ms
40 ms
12.6 MB
36.0 MB
385
1098
4.2 643 4.83 ☓ 1011 213 64
128
79
214
1.23 ☓ 1012
All
127
All
280 ms
290 ms
49.0 MB
247 MB
187
940
4.3 1283 6.03 ☓ 1010 1263 128
256
495
1263
1.73 ☓ 1011
All
143
All
1.64 s
2.1 s
385 MB
1.98 GB
184
946
4.4 2563 7.54 ☓ 109 8206 256
512
3099
8211
2.06 ☓ 1010
All
136
All
19.3 s
37.9 s
3.18 GB
15.1 GB
190
903
4.5 5123 9.43 ☓ 108 54476 512
1024
20617
54495
2.58 ☓ 109
All
137
All
13 min 38 s
40 min 39 s
25.5 GB
155 GB
190
1155
4.6 a 10243 1.18 ☓ 108 366653 1024 136411 3.25 ☓ 108 137 13 h 41 min 223 GB 208

Notes. Each row corresponds to a particular test, characterised by the number of particles (Npart) and the base grid size (Nx). For each Npart, the mass function is truncated at and are thus generated. For each run, we report the number of haloes detected by AS0HF (), the 90% completeness limit (in mass and number of particles; and respectively), the execution (wall) time and the peak RAM usage. The last column gives the peak RAM per particle.

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