public void visitNode(FlatNode node) {
System.out.println("Creating SliceNodes: " + node);
OutputSliceNode output = new OutputSliceNode();
InputSliceNode input = new InputSliceNode();
FilterContent content;
int mult = 1;
if (node.isFilter()) {
if (node.contents instanceof SIRFileWriter) {
content = new FileOutputContent((SIRFileWriter) node.contents);
} else if (node.contents instanceof SIRFileReader) {
content = new FileInputContent((SIRFileReader) node.contents);
} else content = new FilterContent(node.getFilter());
} else if (node.isSplitter()) {
CType type = CommonUtils.getOutputType(node);
SIRIdentity id = new SIRIdentity(type);
RenameAll.renameAllFilters(id);
content = new FilterContent(id);
if (!node.isDuplicateSplitter()) mult = node.getTotalOutgoingWeights();
} else {
// joiner
CType type = CommonUtils.getOutputType(node);
SIRIdentity id = new SIRIdentity(type);
RenameAll.renameAllFilters(id);
content = new FilterContent(id);
mult = node.getTotalIncomingWeights();
}
if (exeCounts[0].containsKey(node.contents))
content.setInitMult(mult * ((int[]) exeCounts[0].get(node.contents))[0]);
else content.setInitMult(0);
content.setSteadyMult(mult * ((int[]) exeCounts[1].get(node.contents))[0]);
FilterSliceNode filterNode = new FilterSliceNode(content);
if (node.isSplitter() || node.isJoiner()) generatedIds.add(filterNode);
inputNodes.put(node.contents, input);
outputNodes.put(node.contents, output);
filterNodes.put(node.contents, filterNode);
}
/**
* generate the switch code for 1 data item given the list of destinations we do not want to
* duplicate items until neccessary, so we have to keep track of all the routes and then generate
* the switch code this way we can route multiple dests per route instruction
*/
protected void generateSwitchCode(FlatNode fire, List<FlatNode> dests) {
assert !(layout.getIdentities().contains(fire));
// should only have one previous
HashMap<ComputeNode, ComputeNode> prev = new HashMap<ComputeNode, ComputeNode>();
HashMap<ComputeNode, HashSet> next = new HashMap<ComputeNode, HashSet>();
ListIterator<FlatNode> destsIt = dests.listIterator();
while (destsIt.hasNext()) {
FlatNode dest = destsIt.next();
assert dest != null;
assert !(layout.getIdentities().contains(dest));
// System.out.println(" Dest: " + dest + " " + layout.getTile(dest));
ComputeNode[] hops =
layout
.router
.getRoute(ssg, layout.getComputeNode(fire), layout.getComputeNode(dest))
.toArray(new ComputeNode[0]);
assert hops.length > 1
: "Error: Bad Layout (could not find route from "
+ fire.toString()
+ " -> "
+ dest.toString();
// for (int i = 0; i < hops.length; i++)
// System.out.println(" " + hops[i]);
// add to fire's next
if (!next.containsKey(layout.getComputeNode(fire)))
next.put(layout.getComputeNode(fire), new HashSet());
next.get(layout.getComputeNode(fire)).add(hops[1]);
// add to all other previous, next
for (int i = 1; i < hops.length - 1; i++) {
if (prev.containsKey(hops[i]))
if (prev.get(hops[i]) != hops[i - 1])
Utils.fail("More than one previous tile for a single data item");
prev.put(hops[i], hops[i - 1]);
if (!next.containsKey(hops[i])) next.put(hops[i], new HashSet());
next.get(hops[i]).add(hops[i + 1]);
}
// add the last step, plus the dest to the dest map
if (prev.containsKey(hops[hops.length - 1]))
if (prev.get(hops[hops.length - 1]) != hops[hops.length - 2])
Utils.fail("More than one previous tile for a single data item (2)");
prev.put(hops[hops.length - 1], hops[hops.length - 2]);
if (!next.containsKey(hops[hops.length - 1])) next.put(hops[hops.length - 1], new HashSet());
next.get(hops[hops.length - 1]).add(hops[hops.length - 1]);
}
// create the appropriate amount of routing instructions
int elements = Util.getTypeSize(CommonUtils.getOutputType(fire));
for (int i = 0; i < elements; i++) asm(layout.getComputeNode(fire), prev, next);
}
/*
* When generating (no) code for init routine, also generate File*
* and close() for file.
*/
private static void genFileReaderInit(
SIRFileReader fr,
CType return_type,
String function_name,
int selfID,
List /*String*/ cleanupCode,
CodegenPrintWriter p) {
int id = NodeEnumerator.getSIROperatorId(fr);
String theType = "" + fr.getOutputType();
// dispatch to special routine for bit type
if (theType.equals("bit")) {
p.print("FILE* " + fpName(fr) + ";");
p.newLine();
p.newLine();
}
startParameterlessFunction(CommonUtils.CTypeToStringA(return_type, true), function_name, p);
if (theType.equals("bit")) {
p.print(fpName(fr) + " = fopen(\"" + fr.getFileName() + "\", \"r\");");
p.newLine();
p.print("assert (" + fpName(fr) + ");");
p.newLine();
} else {
p.print("__file_descr__" + id + " = FileReader_open(\"" + fr.getFileName() + "\");");
p.newLine();
p.print("assert (__file_descr__" + id + ");");
p.newLine();
}
endFunction(p);
String closeName = ClusterUtils.getWorkName(fr, selfID) + "__close";
startParameterlessFunction("void", closeName, p);
if (theType.equals("bit")) {
p.println("fclose(" + fpName(fr) + ");");
} else {
p.println("FileReader_close(__file_descr__" + id + ");");
}
endFunction(p);
cleanupCode.add(closeName + "();\n");
}
/**
* Create code for the init function of built-in filter
*
* @param filter The filter for which we are creating init function
* @param return_type The return type for the init function
* @param function_name The name for the init function
* @param selfID The unique identifier that FlatIRToCluster has assigned to the function
* @param cleanupCode A list of statements run at "clean-up" time to which this code can add
* requests to close files, etc.
* @param p The printer for outputting code for the function
*/
static void predefinedFilterInit(
SIRPredefinedFilter filter,
CType return_type,
String function_name,
int selfID,
List /*String*/ cleanupCode,
CodegenPrintWriter p) {
// No wrapper code around init since may need to create defns at file
// level. We assume that the code generator will continue to
// generate code for init before code for work, so scope of
// any file-level code will include the work function.
// p.println("// predefinedFilterInit " + filter.getName()
// + " " + filter.getInputType().toString() + " -> "
// + filter.getOutputType().toString());
if (filter instanceof SIRFileReader) {
if (!(KjcOptions.mencoder || KjcOptions.blender)) {
genFileReaderInit(
(SIRFileReader) filter, return_type, function_name, selfID, cleanupCode, p);
}
} else if (filter instanceof SIRFileWriter) {
if (!(KjcOptions.mencoder || KjcOptions.blender)) {
genFileWriterInit(
(SIRFileWriter) filter, return_type, function_name, selfID, cleanupCode, p);
}
} else if (filter instanceof SIRIdentity
|| filter instanceof SIRDummySink
|| filter instanceof SIRDummySource) {
// all of these have filters produce empty init functions.
startParameterlessFunction(CommonUtils.CTypeToStringA(return_type, true), function_name, p);
endFunction(p);
} else if (filter instanceof SIRDummySink) {
// TODO: get right exception for unimplemented.
throw new Error("Unsupported predefined filter " + filter.getName());
} else if (filter instanceof SIRDummySource) {
throw new Error("Unsupported predefined filter " + filter.getName());
} else {
// TODO: get right unchecked exception for unextended code...
throw new Error("Unknown predefined filter " + filter.getName());
}
}
/*
* When generating (no) code for init routine, also generate File*
* and close() for file.
*/
private static void genFileWriterInit(
SIRFileWriter fw,
CType return_type,
String function_name,
int selfID,
List /*String*/ cleanupCode,
CodegenPrintWriter p) {
int id = NodeEnumerator.getSIROperatorId(fw);
String theType = "" + fw.getInputType();
String bits_to_go = bitsToGoName(fw);
String the_bits = theBitsName(fw);
if (theType.equals("bit")) {
p.println("FILE* " + fpName(fw) + ";");
}
if (theType.equals("bit")) {
// the bit type is special since you can not just read or
// write a bit. It requires buffering in some larger
// integer type.
p.println(bits_type + " " + the_bits + " = 0;");
p.println("int " + bits_to_go + " = 8 * sizeof(" + the_bits + ");");
}
p.newLine();
startParameterlessFunction(CommonUtils.CTypeToStringA(return_type, true), function_name, p);
if (theType.equals("bit")) {
p.println(fpName(fw) + " = fopen(\"" + fw.getFileName() + "\", \"w\");");
p.println("assert (" + fpName(fw) + ");");
} else {
p.print("__file_descr__" + id + " = FileWriter_open(\"" + fw.getFileName() + "\");");
p.newLine();
p.print("assert (__file_descr__" + id + ");");
p.newLine();
}
endFunction(p);
String closeName = ClusterUtils.getWorkName(fw, selfID) + "__close";
startParameterlessFunction("void", closeName, p);
if (theType.equals("bit")) {
p.println("if (" + bits_to_go + " != 8 * sizeof(" + the_bits + ")) {");
p.indent();
p.println(the_bits + " = " + the_bits + " << " + bits_to_go + ";");
p.println(
"fwrite("
+ "&"
+ the_bits
+ ", "
+ "sizeof("
+ the_bits
+ "), "
+ "1, "
+ fpName(fw)
+ ");");
p.outdent();
p.println("}");
}
if (theType.equals("bit")) {
p.println("fclose(" + fpName(fw) + ");");
} else {
p.println("FileWriter_flush(__file_descr__" + id + ");");
p.println("FileWriter_close(__file_descr__" + id + ");");
}
endFunction(p);
cleanupCode.add(closeName + "();\n");
}