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60 lines
2.1 KiB
60 lines
2.1 KiB
RELEASE NOTES FOR DDDMP
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Revision: Version 2.0.2
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Turin, Italy, February 01, 2004
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dddmp-2.0.2 is now available at
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WEB page: http://staff.polito.it/{gianpiero.cabodi,stefano.quer}
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dddmp-2.0.2 has a few bug fixes with respect to dddmp-2.0
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Release 2.0.2 of DDDMP improves DDDMP-1.2 in the following areas:
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1. Support to store and load ADD has been inserted in the dddmp tool
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2. Support to store BDDs as CNF formulas has been inserted in the
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dddmp tool.
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As far as the storing process is concerned three possible formats
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are available:
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DDDMP_CNF_MODE_NODE
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store a BDD by introducing an auxiliary variable for each BDD node
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DDDMP_CNF_MODE_MAXTERM
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store a BDD by following the maxterm of the represented function
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DDDMP_CNF_MODE_BEST
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trade-of between the two previous solution, trying to optimize
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the number of literals stored.
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As far as the loading process is concerned three possible formats
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are available:
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DDDMP_CNF_MODE_NO_CONJ
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Return the Clauses without Conjunction
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DDDMP_CNF_MODE_NO_QUANT
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Return the sets of BDDs without Quantification
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DDDMP_CNF_MODE_CONJ_QUANT
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Return the sets of BDDs AFTER Existential Quantification
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3. Functions to load the header of a BDD/ADD/CNF file, so collecting
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information regarding variables, variable ordering, etc.
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This can be seen as a pre-processing step prior a possible BDD/ADD/CNF
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load of the entire structure.
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Moreover it can be used in a manager initialization phase.
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4. More precise information are stored in each BDD/ADD header during
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the storing phase.
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In particular this information may be used to make up the exact
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variable ordering present in the manager used during the storing
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phase.
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Full compatibility with previously versions of the files (from
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dddmp-1.0 on) is guaranteed.
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5. Miscellaneous
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Debugging has been performed on different hardware architectures
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6. The test program, testdddmp has been improved.
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Now it allows to perform more operations and to better debug the
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different options.
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