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GeekInterview.com > Interview Questions > Data Warehousing > Abinitio
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Question: Memory requirement of graph
Answer: How can I calculate the total memory requirement of a graph? |
| June 06, 2008 06:40:23 |
#1 |
| dhanoo_p |
Member Since: June 2008 Total Comments: 1 |
RE: Memory requirement of graph
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You can roughly calculate memory requirement as:
1. Each partition of a component uses:
~ 7 MB + max-core (if any)
2. Add size of lookup files used in phase (if multiple components use same lookup, only count it once)
3. Multiply by degree of parallelism. Add up all components in a phase; that is how much memory is used in that phase.
4. (Total memory requirement of a graph) > (the largest-memory phase in the graph). |
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