Open JorenVdV opened 5 years ago
Hey,
I'll take a look at it. I've seen this happen sporadically, but not been able to figure out exactly why it happens as it doesn't happen every time annoyingly.
e.g. I just tested this on a Docker image and it gives the same results with concurrency 1 and concurrency > 1.
Cheers, Mark
Any resolution on this? Still not able to use > 1 core with algo.similarity.jaccard. I'm running 3.5.8 EE.
Please check the https://github.com/neo4j/graph-data-science as it has improved graph algorithms, and it is also the successor for the graph algorithms library
Problem When running the Jaccard similarity algorithm over a list of node and categories entries all the similarities are 0 when run without concurrency limit set to 1.
Environment Docker image running Neo4j 3.5.3 and graph algorithms 3.5.3.3, memory is limited to 16G, cpu's are unbound (192 cpu's in the machine, shared with other processes)
Setup
Queries
results in
removing the concurrency limit
results in
Setting the concurrency to any number except for 1 results in the latter case. The same behaviour is observed when running with our 300k nodes Jaccard computation.