Abstract
| Original language | Undefined |
|---|---|
| Pages | 521-532 |
| Number of pages | 12 |
| Publication status | Published - Aug 1992 |
Keywords
- DB-PDB: PARALLEL DATABASES
- IR-66478
- EWI-7372
Cite this
}
Parallelism in a Main-Memory System: The Performance of PRISMA/DB. / Wilschut, A.N.; Flokstra, Jan; Apers, Peter M.G.
1992. 521-532.Research output: Contribution to conference › Paper › Academic › peer-review
TY - CONF
T1 - Parallelism in a Main-Memory System: The Performance of PRISMA/DB
AU - Wilschut, A.N.
AU - Flokstra, Jan
AU - Apers, Peter M.G.
N1 - Imported from EWI/DB PMS [db-utwente:inpr:0000003143]
PY - 1992/8
Y1 - 1992/8
N2 - his paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an abstract architecture for parallel query execution is presented. A performance model for the execution of simple relational operations on this architecture is developed. The parameters in the model are set using experiments on PRISMA/DB and the performance of PRISMA/DB is analized in the context of the model. Several conclusions can be drawn from the model combined with the results of the performance experiments. Firstly, the performance of PRISMA/DB appears to be competitive with respect toother systems. Secondly, the developed model can explain the results from the performance experiments to a large extent. Also, it is concluded that observed linear speedup for small numbers of processors cannot always be extrapolated to larger numbers of processors. Finally, it is concluded that the optimal number of processors for the parallelexecution of an operation is smaller for a main- memory system than for a disk -based system. The results of this study can be used to design data fragmentation strategies for large parallel machines.
AB - his paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an abstract architecture for parallel query execution is presented. A performance model for the execution of simple relational operations on this architecture is developed. The parameters in the model are set using experiments on PRISMA/DB and the performance of PRISMA/DB is analized in the context of the model. Several conclusions can be drawn from the model combined with the results of the performance experiments. Firstly, the performance of PRISMA/DB appears to be competitive with respect toother systems. Secondly, the developed model can explain the results from the performance experiments to a large extent. Also, it is concluded that observed linear speedup for small numbers of processors cannot always be extrapolated to larger numbers of processors. Finally, it is concluded that the optimal number of processors for the parallelexecution of an operation is smaller for a main- memory system than for a disk -based system. The results of this study can be used to design data fragmentation strategies for large parallel machines.
KW - DB-PDB: PARALLEL DATABASES
KW - IR-66478
KW - EWI-7372
M3 - Paper
SP - 521
EP - 532
ER -