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Searchgraph World Map: requirements
Posted: Mon May 30, 2022 8:51 am
by Bernd Welter
Cheers,
one of our developers calculated a search graph for the whole world map (PTV_World_City_Map_Premium_2022_2H). Not impossible, but the process is quite hungry for ressources (both time and memory)... here's a quick summary:
- Status: it worked
- 64 GB memory + 100GB pagefile
- Temporarily the process "ChNodeOrderGenerator" grabbed more than 150 virtual memory
- Complete creation took more than 4 hours
Please be aware that this was more or less an academic test (in the context of PTV xIntermodal). In a production environment such a graph would also require much memory and as users normally deal with a clear geographic region such as Europe
XOR North America we do not recommend to create such enormous structures if not really needed.
Bernd
Re: Searchgraph World Map: requirements
Posted: Mon Jun 05, 2023 3:08 pm
by Bernd Welter
I did it - because I was able to do so:
2023-06-05 12:46:04,268;8556d10a-7d80-4662-b552-bdaeef61b422;127.0.0.1;unknown;unknown-port;notebook.bwe;XData.createHighPerformanceRoutingNetwork;true;-;-;-;default;m0001;0;4892615;4893417;async;-;-
So within a 1:20 hrs time I successfully computed a WORLD HPR on my 64GB memory driven laptop.
The output file is about 14GB in size.
But as mentioned above: you probably better create continental grahphs based on GEOGRAPHIC RESTRICTIONS such as
- allowed countries=["zz-eur"]
Bernd