Spike exchange methods for a Blue Gene/P supercomputer (Hines et al., 2011)

 Download zip file   Auto-launch 
Help downloading and running models
Accession:137845
Tests several spike exchange methods on a Blue Gene/P supercomputer on up to 64K cores.
Reference:
1 . Hines M, Kumar S, Schürmann F (2011) Comparison of neuronal spike exchange methods on a Blue Gene/P supercomputer. Front Comput Neurosci 5:49 [PubMed]
Model Information (Click on a link to find other models with that property)
Model Type: Realistic Network;
Brain Region(s)/Organism:
Cell Type(s):
Channel(s):
Gap Junctions:
Receptor(s):
Gene(s):
Transmitter(s):
Simulation Environment: NEURON;
Model Concept(s): Methods;
Implementer(s): Hines, Michael [Michael.Hines at Yale.edu];
objref m

ncell = 0
ncon = 1
nhost = 2
meth = 3
invl = 4
phase = 5
comp = 6
total = 7
set_maxstep = 8

proc rd() {local i localobj f
	f = new File()
	m = new Matrix()
	f.ropen("table.dat")
	m.scanf(f)
//	m.printf(" %4.2f")
	f.close()
	m.setcol(ncon, m.getcol(ncon).div(1000))
	m.setcol(nhost, m.getcol(nhost).div(1024))
	m.setcol(ncell, m.getcol(ncell).div(1024*1024))
}
rd()

obfunc get() {local i, arg, val, k  localobj r, si, mr, m
	m = $o1
	si = new Vector(m.nrow)
	si.indgen
	for i=2, numarg() {
		arg = $i
		i += 1
		val = $i
//print i, arg, val
		r = m.getcol(arg).index(m.getcol(arg),si).indvwhere("==", val)
//print "r.size ", r.size
//r.printf
		si.index(si, r)
	}
//print "si.size ", si.size
//si.printf
	k = si.size
	if (k == 0) k = 1
	mr = new Matrix(k, m.ncol())
	for i=0, si.size-1 {
		mr.setrow(i, m.getrow(si.x[i]))
	}
	return mr
}

//get1(m, nhost,64, ncon,1).printf

proc append() { localobj vv, m2
	vv = $o1  m2 = $o2
	if (m2.nrow == 0) { m2 = new Matrix(1,20) }
	vv.append(m2.x[0][comp])
	vv.append(m2.x[0][total])
	vv.append(m2.x[0][set_maxstep])
}

obfunc line() {localobj mr, m2, vv
	vv = new Vector()
	mr = get(m, nhost, $1, ncell, $2, ncon, $3)
//	mr.printf()
	vv.append(mr.x[0][nhost])
	vv.append(mr.x[0][ncell])
	vv.append(mr.x[0][ncon])
	m2 = get(mr, meth, 0) append(vv, m2)
	m2 = get(mr, meth, 1, invl, 2, phase, 1) append(vv, m2)
	m2 = get(mr, meth, 2, invl, 2, phase, 1) append(vv, m2)
	m2 = get(mr, meth, 3, invl, 1, phase, 0) append(vv, m2)

//	m2 = get(mr, meth, 3, invl, 2, phase, 0) append(vv, m2)

//	m2 = get(mr, meth, 2, invl, 1, phase, 1) append(vv, m2)
//	m2 = get(mr, meth, 2, invl, 1, phase, 0) append(vv, m2)
//	m2 = get(mr, meth, 2, invl, 2, phase, 0) append(vv, m2)
	return vv
}

obfunc tab() {local i, j, k, kk, nc  localobj m, vv, s, sf
	sf = new StringFunctions()
	m = new Matrix(4, line(8,$1,$2).size)
	j = 0
	for case(&i, 8, 16, 32, 64) {
		if ($2 == 0 && $1 == 1) { nc = 2 }
		if ($2 == 0 && $1 == 10) { nc = .25 }
		if ($2 == 1 && $1 == 1) { nc = 2*i/8 }
		if ($2 == 1 && $1 == 10) { nc = .25*i/8 }
		vv = line(i, nc, $1)
		m.setrow(j, vv)
		printf("%2dK", vv.x[0])
		if (vv.x[1] < 1) {
			printf(" & 1/%dM", 1/vv.x[1])
		}else{
			printf(" & %3dM", vv.x[1])
		}
		printf(" & %2dk", vv.x[2])
		s = new String()
		for k=3, vv.size-1 {
			sprint(s.s, "%.3g", vv.x[k])
			for kk=sf.len(s.s), 3 {
				if (sf.substr(s.s, ".") == -1) {
					sprint(s.s, "%s.", s.s)
				}else{
					sprint(s.s, "%s0", s.s)
				}
			}
			if (vv.x[k] == 0) { s.s = " ---" }
			printf(" & %s", s.s)
		}
		printf(" \\\\\n")
		j += 1
	}
	//m.printf(" %4.2f")
	return m
}

objref glist
glist = new List()
objref mark
mark = new List()
mark.append(new String("T"))
mark.append(new String("t"))
mark.append(new String("O"))
mark.append(new String("o"))

proc pline() {
	$o2.mark($o6, $o1, $s5, 10, $3, $4)
	$o2.line($o6, $o1, $3, $4)
}
proc grph() {local i, j, n  localobj x, y, g
	g = new Graph()  glist.append(g)
	g.size(0, 5, 0, 30)
	if ($2) {
		g.size(0, 5, 0, 5)
		g.beginline(1, 6)
		g.line(1,4) g.line(4,1) g.flush()
	}
    for j = 1, 4 {
	n = j*2 + 2 + j - 1
	x = $o1.getcol(0)
	y = $o1.getcol(n)
	x.div(4).log.div(log(2))
	if ($2) {
		y.log.div(log(2))
	}
	pline(x, y, 1, 1, mark.o(j-1).s, g)
   }
}


objref mm
grph(tab(1, 0), 1)
grph(tab(10, 0), 1)
grph(tab(1, 1), 0)
grph(tab(10, 1), 0)


Loading data, please wait...