[Getdp] Surface probability density .pro

Michael Grant m.grant at ee.wits.ac.za
Thu Jun 23 19:30:41 CEST 2011


Hi Folks,

I'm managing to illicit some non-standard behavior from getdp, particularly from PETSC:

the call is getdp test.pro -msh test.msh -pre testr and the error is 

[0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation Violation, probably memory access 
out of range

I'm using this on MacOsX (10.6.7) and the test problem in the demo folder of both the 32 bit and 64 
bit stable OR snapshot build works. (i.e. not getdp's fault).  The problem is clearly between the 
keyboard and the chair.

I'm trying to calculate a probability at each point, and then integrate it within a region.  The 
probability density p(x, y) = exp(-(x+y)).

My problem file is quite happily digested by getdp, just cant compute the presolver info.

Any ideas?

Kind regards,

Mike Grant.

--------------test.pro-------------------
Group {
	Space = Region[101]; Building = Region[102];	
	Problem = Region[ {Space, Building} ];

}

Function {
	prob[] = Exp(-1*($X + $Y);
}


FunctionSpace {
{ Name gspace; Type Scalar;
	BasisFunction {
{Name sn; NameOfCoef vn; Function BF_Node;
Support Problem; Entity NodesOf[All]; }
	}
	GlobalQuantity {
	{Name gquantity; Type AssociatedWith; NameOfCoef vn;}
	}
}
}

Formulation {
{ Name testf; Type FemEquation;
	Quantity {
	{ Name gquantity; Type Global; NameOfSpace gspace; }
	}
	Equation {
		GlobalTerm {  [ prob[], {gquantity} ]  ; In Problem; }
	}
}
}

Resolution {
{ Name testr;
	System {
	{Name gsystem; NameOfFormulation testf;}
	}
	Operation {
	Generate [gsystem]; Solve[gsystem]; SaveSolution[gsystem];
	}
}
}

PostProcessing {
{ Name test; NameOfFormulation testf;
	Quantity {
	{Name gquantity; Value {Local{ [ {gquantity} ] ; In Problem; }}}
	}
}
}

PostOperation {
{Name post_out; NameOfPostProcessing test;
	Operation {
		Print [gquantity, OnElementsOf Problem, File "map.pos"];
	}
}
} 

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