XorSum opened a new pull request #1079:
URL: https://github.com/apache/systemds/pull/1079
When i use `CostEstimator` to estimate the time cost of a programblock, an
error occurred:
``` java
java.lang.NumberFormatException: For input string: "copy"
at
java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.base/java.lang.Long.parseLong(Long.java:692)
at java.base/java.lang.Long.parseLong(Long.java:817)
at
org.apache.sysds.hops.cost.CostEstimator.maintainCPInstVariableStatistics(CostEstimator.java:218)
at
org.apache.sysds.hops.cost.CostEstimator.rGetTimeEstimate(CostEstimator.java:138)
at
org.apache.sysds.hops.cost.CostEstimator.getTimeEstimate(CostEstimator.java:89)
at
org.apache.sysds.hops.cost.CostEstimationWrapper.getTimeEstimate(CostEstimationWrapper.java:79)
```
Look at the source code in `org.apache.sysds.hops.cost.CostEstimator.java`
from line 204 to line 221:
``` java
private static void maintainCPInstVariableStatistics( CPInstruction
inst, HashMap<String, VarStats> stats )
{
if( inst instanceof VariableCPInstruction )
{
String optype = inst.getOpcode();
String[] parts =
InstructionUtils.getInstructionParts(inst.toString());
if( optype.equals("createvar") ) {
if( parts.length<10 )
return;
String varname = parts[1];
long rlen = Long.parseLong(parts[6]);
long clen = Long.parseLong(parts[7]);
int blen = Integer.parseInt(parts[8]);
long nnz = Long.parseLong(parts[10]);
VarStats vs = new VarStats(rlen, clen, blen,
nnz, false);
stats.put(varname, vs);
}
// ......
}
}
```
and an example of instruction:
```
CP createvar _mVar9 scratch_space//_p18828_192.168.1.151//_t0/temp0 true
MATRIX binary -1 1 1000 -1 copy
```
The index of nnz is 10 in the source.
Actually, the index of nnz is 9.
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