WebMar 25, 2024 · I have sparsehash (from github since google code re-direct) install but SGA configure not able to find it. Anyone has good idea what was missing? WebThe fastest hash table in the very high memory efficiency regime is google::sparse_hash_map at 0.88, but it can be beat by using a hash table combining chaining, a very high load factor and pseudorandom ordering, indicated with a green dot at 0.95, more on that here. A Judy array is good for medium to small datasets, but the …
Benchmark of major hash maps implementations
WebThe sparse-map library is a C++ implementation of a memory efficient hash map and hash set. It uses open-addressing with sparse quadratic probing. ... Only Google's dense_hash_map is consistently faster, at the cost of much greater memory usage (especially when the final size of the map is not known in advance, and insertions cause … WebTorchSparse depends on the Google Sparse Hash library. On Ubuntu, it can be installed by. sudo apt-get install libsparsehash-dev On Mac OS, it can be installed by. brew install google-sparsehash You can also compile the library locally (if you do not have the sudo permission) and add the library path to the environment variable CPLUS_INCLUDE_PATH. colindale to wembley
abseil / `absl::Hash`
WebMar 13, 2011 · The dense hashtable is your ordinary textbook hashtable implementation. The sparse hashtable stores only the elements that have actually been set, divided over a number of arrays. To quote from the comments in the implementation of sparse tables: // The idea is that a table with (logically) t buckets is divided // into t/M *groups* of M … WebIntroduction. An extremely memory-efficient hash_map implementation. 2 bits/entry overhead! The SparseHash library contains several hash-map implementations, including implementations that optimize for space or speed. These hashtable implementations are similar in API to SGI's hash_map class and the tr1 unordered_map class, but with … WebJun 17, 2015 · Google sparse hash to construct my own graph class in C++. Neo4J (I was just getting started with this one) Lemon library; I just completed the "Google sparse hash graph", but it turns out to get real slow halfway into the runs. After about a day (memory usage goes above 20 GB, not a problem in itself, because there is way more), it slows … dr nunn\u0027s black oil healing compound