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/*******************************************************************/
/* XDMF */
/* eXtensible Data Model and Format */
/* */
/* Id : Id */
/* Date : $Date$ */
/* Version : $Revision$ */
/* */
/* Author: */
/* Jerry A. Clarke */
/* clarke@arl.army.mil */
/* US Army Research Laboratory */
/* Aberdeen Proving Ground, MD */
/* */
/* Copyright @ 2007 US Army Research Laboratory */
/* All Rights Reserved */
/* See Copyright.txt or http://www.arl.hpc.mil/ice for details */
/* */
/* This software is distributed WITHOUT ANY WARRANTY; without */
/* even the implied warranty of MERCHANTABILITY or FITNESS */
/* FOR A PARTICULAR PURPOSE. See the above copyright notice */
/* for more information. */
/* */
/*******************************************************************/
#include "XdmfDsmBuffer.h"
#include "XdmfDsmComm.h"
#include "XdmfDsmMsg.h"
#include "XdmfArray.h"
#include "XdmfExport.h"
#include <cstring>
#define XDMF_DSM_OPCODE_PUT 0x01
#define XDMF_DSM_OPCODE_GET 0x02
#define XDMF_DSM_SEMA_AQUIRE 0x03
#define XDMF_DSM_SEMA_RELEASE 0x04
extern "C"{
XDMF_EXPORT void *
XdmfDsmBufferServiceThread(void *DsmObj){
XdmfDsmBuffer *Dsm = (XdmfDsmBuffer *)DsmObj;
return(Dsm->ServiceThread());
}
}
XdmfDsmBuffer::XdmfDsmBuffer() {
XdmfInt64 i;
this->ThreadDsmReady = 0;
this->DataPointer = 0;
this->Locks = new XdmfInt64[XDMF_DSM_MAX_LOCKS];
for(i=0;i < XDMF_DSM_MAX_LOCKS;i++) this->Locks[i] = -1;
}
XdmfDsmBuffer::~XdmfDsmBuffer() {
if(this->StorageIsMine) delete[] this->Locks;
}
/*
XdmfInt32
XdmfDsmBuffer::Copy(XdmfDsmBuffer *Source){
cout << "Copying" << endl;
if(XdmfDsm::Copy((XdmfDsm *)Source) != XDMF_SUCCESS) return(XDMF_FAIL);
cout << "Setting locks to " << Source->Locks << endl;
this->Locks = Source->Locks;
return(XDMF_SUCCESS);
}
*/
void *
XdmfDsmBuffer::ServiceThread(){
XdmfInt32 ReturnOpcode;
// Create a copy of myself to get a Unique XdmfDsmMessage
XdmfDsmBuffer UniqueBuffer;
if (UniqueBuffer.Locks) delete[] UniqueBuffer.Locks;
UniqueBuffer.Copy(this);
XdmfDebug("Starting DSM Service on node " << UniqueBuffer.GetComm()->GetId());
this->ThreadDsmReady = 1;
UniqueBuffer.ServiceLoop(&ReturnOpcode);
this->ThreadDsmReady = 0;
XdmfDebug("Ending DSM Service on node " << UniqueBuffer.GetComm()->GetId() << " last op = " << ReturnOpcode);
return((void *)this);
}
XdmfInt32
XdmfDsmBuffer::ServiceInit(){
XdmfInt32 status = XDMF_SUCCESS;
return(status);
}
XdmfInt32
XdmfDsmBuffer::ServiceOnce(XdmfInt32 *ReturnOpcode){
XdmfInt32 status = XDMF_FAIL;
this->Msg->SetTag(XDMF_DSM_COMMAND_TAG);
status = this->Comm->Check(this->Msg);
if(status != XDMF_SUCCESS){
// Nothing to do
return(XDMF_SUCCESS);
}
// Service One Call
// cout << ".... Service a Call" << endl;
return(this->Service(ReturnOpcode));
}
XdmfInt32
XdmfDsmBuffer::ServiceUntilIdle(XdmfInt32 *ReturnOpcode){
XdmfInt32 status = XDMF_SUCCESS;
while(status == XDMF_SUCCESS){
this->Msg->SetTag(XDMF_DSM_COMMAND_TAG);
status = this->Comm->Check(this->Msg);
if(status != XDMF_SUCCESS){
// Nothing to do
return(XDMF_SUCCESS);
}
// Service One Call
status = this->Service(ReturnOpcode);
if(status != XDMF_SUCCESS){
XdmfErrorMessage("ServiceUntilIdle detected error in Service() Method");
return(XDMF_FAIL);
}
}
return(XDMF_SUCCESS);
}
XdmfInt32
XdmfDsmBuffer::ServiceLoop(XdmfInt32 *ReturnOpcode){
XdmfInt32 op, status = XDMF_SUCCESS;
while(status == XDMF_SUCCESS){
status = this->Service(&op);
if(status != XDMF_SUCCESS) return(XDMF_FAIL);
if(ReturnOpcode) *ReturnOpcode = op;
if(op == XDMF_DSM_OPCODE_DONE) return(XDMF_SUCCESS);
}
return(XDMF_SUCCESS);
}
XdmfInt32
XdmfDsmBuffer::Service(XdmfInt32 *ReturnOpcode){
XdmfInt32 Opcode, who, value, status = XDMF_FAIL;
XdmfInt64 aLength, Address;
XdmfByte *datap;
status = this->ReceiveCommandHeader(&Opcode, &who, &Address, &aLength);
if(status == XDMF_FAIL){
XdmfErrorMessage("Error Receiving Command Header");
return(XDMF_FAIL);
}
switch(Opcode){
case XDMF_DSM_OPCODE_PUT :
XdmfDebug("PUT request from " << who << " for " << aLength << " bytes @ " << Address);
if(aLength > (this->EndAddress - Address + 1)){
XdmfErrorMessage("Length too long");
return(XDMF_FAIL);
}
// datap = (XdmfByte *)this->Storage->GetDataPointer();
// Stay out of HDF library. If it is threadsafe if will
// deadlock on mpi_recv. If it is not threadsafe it will
// get corrupted
datap = this->DataPointer;
datap += Address - this->StartAddress;
this->Msg->SetTag(XDMF_DSM_COMMAND_TAG);
status = this->ReceiveData(who, datap, aLength);
if(status == XDMF_FAIL){
XdmfErrorMessage("ReceiveData() failed");
return(XDMF_FAIL);
}
XdmfDebug("Serviced PUT request from " << who << " for " << aLength << " bytes @ " << Address);
break;
case XDMF_DSM_OPCODE_GET :
XdmfDebug("(Server " << this->Comm->GetId() << ") Get request from " << who << " for " << aLength << " bytes @ " << Address);
if(aLength > (this->EndAddress - Address + 1)){
XdmfErrorMessage("Length " << aLength << " too long for address of len " << this->EndAddress - Address);
XdmfErrorMessage("Server Start = " << this->StartAddress << " End = " << this->EndAddress);
return(XDMF_FAIL);
}
// datap = (XdmfByte *)this->Storage->GetDataPointer();
// Stay out of HDF library. If it is threadsafe if will
// deadlock on mpi_recv. If it is not threadsafe it will
// get corrupted
datap = this->DataPointer;
datap += Address - this->StartAddress;
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
status = this->SendData(who, datap, aLength);
if(status == XDMF_FAIL){
XdmfErrorMessage("SendData() failed");
return(XDMF_FAIL);
}
XdmfDebug("(Server " << this->Comm->GetId() << ") Serviced GET request from " << who << " for " << aLength << " bytes @ " << Address);
break;
case XDMF_DSM_SEMA_AQUIRE :
// cout << "Sema " << Address << " Aquire" << endl;
if ((Address < 0) || (Address >= XDMF_DSM_MAX_LOCKS)){
XdmfErrorMessage("Invalid Sema Request " << Address);
value = XDMF_FAIL;
}else{
// cout << "Remote Locks at " << this->Locks << endl;
// cout << "Server Locks[" << Address << "] = " << this->Locks[Address] << endl;
if(this->Locks[Address] == -1){
// cout << "Remote " << who << " Aquired Lock " << Address << endl;
this->Locks[Address] = who;
value = XDMF_SUCCESS;
}else{
// cout << "Remote " << who << " did not Aquired Lock " << Address << " already locked by " << this->Locks[Address] << endl;
value = XDMF_FAIL;
}
}
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
status = this->SendData(who, (XdmfByte *)&value, sizeof(XdmfInt32));
if(status == XDMF_FAIL){
XdmfErrorMessage("SemaAquire Response Failed");
return(XDMF_FAIL);
}
break;
case XDMF_DSM_SEMA_RELEASE :
// cout << "Sema " << Address << " Release" << endl;
if ((Address < 0) || (Address >= XDMF_DSM_MAX_LOCKS)){
XdmfErrorMessage("Invalid Sema Request " << Address);
value = XDMF_FAIL;
}else{
if(this->Locks[Address] == who){
// cout << who << " Released Lock " << Address << endl;
this->Locks[Address] = -1;
value = XDMF_SUCCESS;
}else{
// cout << who << " did not Release Lock " << Address << " already locked by " << this->Locks[Address] << endl;
value = XDMF_FAIL;
}
}
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
status = this->SendData(who, (XdmfByte *)&value, sizeof(XdmfInt32));
if(status == XDMF_FAIL){
XdmfErrorMessage("SemaAquire Response Failed");
return(XDMF_FAIL);
}
break;
case XDMF_DSM_OPCODE_DONE :
break;
default :
XdmfErrorMessage("Unknown Opcode " << Opcode);
return(XDMF_FAIL);
}
if(ReturnOpcode) *ReturnOpcode = Opcode;
return(XDMF_SUCCESS);
}
XdmfInt32
XdmfDsmBuffer::Aquire(XdmfInt64 Index){
XdmfInt32 who, MyId = this->Comm->GetId();
XdmfInt32 RemoteStatus;
who = this->AddressToId(0);
// cout << "Aquire :: MyId = " << MyId << " who = " << who << endl;
if(who == XDMF_FAIL){
XdmfErrorMessage("Address Error");
return(XDMF_FAIL);
}
if ((Index < 0) || (Index >= XDMF_DSM_MAX_LOCKS)){
XdmfErrorMessage("Invalid Sema Request " << Index);
return(XDMF_FAIL);
}
if(who == MyId){
// cout << "Local Locks at " << this->Locks << endl;
// cout << "Local Locks[" << Index << "] = " << this->Locks[Index] << endl;
if((this->Locks[Index] == -1) || (this->Locks[Index] == MyId)){
this->Locks[Index] = MyId;
// cout << who << " Aquired own lock " << Index << endl;
return(XDMF_SUCCESS);
}else{
// cout << who << " did not Aquired own lock " << Index << endl;
return(XDMF_FAIL);
}
}else{
XdmfInt32 status;
// cout << "Sending Header" << endl;
status = this->SendCommandHeader(XDMF_DSM_SEMA_AQUIRE, who, Index, sizeof(XdmfInt64));
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to send Aquire Header to " << who);
return(XDMF_FAIL);
}
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
// cout << "Getting Response" << endl;
status = this->ReceiveData(who, &RemoteStatus, sizeof(XdmfInt32));
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to Aquire " << Index << " Response From " << who);
return(XDMF_FAIL);
}
// cout << "RemoteStatus = " << RemoteStatus << endl;
return(RemoteStatus);
}
return(XDMF_FAIL);
}
XdmfInt32
XdmfDsmBuffer::Release(XdmfInt64 Index){
XdmfInt32 who, MyId = this->Comm->GetId();
XdmfInt32 RemoteStatus;
who = this->AddressToId(0);
if(who == XDMF_FAIL){
XdmfErrorMessage("Address Error");
return(XDMF_FAIL);
}
if ((Index < 0) || (Index >= XDMF_DSM_MAX_LOCKS)){
XdmfErrorMessage("Invalid Sema Request " << Index);
return(XDMF_FAIL);
}
if(who == MyId){
if((this->Locks[Index] == -1) || (this->Locks[Index] == MyId)){
this->Locks[Index] = -1;
//cout << who << " Released own lock " << Index << endl;
return(XDMF_SUCCESS);
}else{
// cout << who << " did not Released own lock " << Index << endl;
return(XDMF_FAIL);
}
}else{
XdmfInt32 status;
// cout << "Sending Release Header" << endl;
status = this->SendCommandHeader(XDMF_DSM_SEMA_RELEASE, who, Index, sizeof(XdmfInt64));
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to send Release Header to " << who);
return(XDMF_FAIL);
}
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
// cout << "Receiving Release Response " << endl;
status = this->ReceiveData(who, &RemoteStatus, sizeof(XdmfInt32));
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to Release " << Index << " Response From " << who);
return(XDMF_FAIL);
}
// cout << "Release Response = " << RemoteStatus << endl;
return(RemoteStatus);
}
return(XDMF_FAIL);
}
XdmfInt32
XdmfDsmBuffer::Put(XdmfInt64 Address, XdmfInt64 aLength, void *Data){
XdmfInt32 who, MyId = this->Comm->GetId();
XdmfInt64 astart, aend, len;
XdmfByte *datap = (XdmfByte *)Data;
while(aLength){
who = this->AddressToId(Address);
if(who == XDMF_FAIL){
XdmfErrorMessage("Address Error");
return(XDMF_FAIL);
}
this->GetAddressRangeForId(who, &astart, &aend);
len = MIN(aLength, aend - Address + 1);
XdmfDebug("Put " << len << " Bytes to Address " << Address << " Id = " << who);
if(who == MyId){
XdmfByte *dp;
// cout << "That's me!!" << endl;
// dp = (XdmfByte *)this->Storage->GetDataPointer();
// Stay out of HDF library. If it is threadsafe if will
// deadlock on mpi_recv. If it is not threadsafe it will
// get corrupted
dp = this->DataPointer;
dp += Address - this->StartAddress;
memcpy(dp, datap, len);
}else{
XdmfInt32 status;
status = this->SendCommandHeader(XDMF_DSM_OPCODE_PUT, who, Address, len);
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to send PUT Header to " << who);
return(XDMF_FAIL);
}
this->Msg->SetTag(XDMF_DSM_COMMAND_TAG);
status = this->SendData(who, datap, len);
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to send " << len << " bytes of data to " << who);
return(XDMF_FAIL);
}
}
aLength -= len;
Address += len;
datap += len;
}
return(XDMF_SUCCESS);
}
XdmfInt32
XdmfDsmBuffer::Get(XdmfInt64 Address, XdmfInt64 aLength, void *Data){
XdmfInt32 who, MyId = this->Comm->GetId();
XdmfInt64 astart, aend, len;
XdmfByte *datap = (XdmfByte *)Data;
while(aLength){
who = this->AddressToId(Address);
if(who == XDMF_FAIL){
XdmfErrorMessage("Address Error");
return(XDMF_FAIL);
}
this->GetAddressRangeForId(who, &astart, &aend);
len = MIN(aLength, aend - Address + 1);
XdmfDebug("Get " << len << " Bytes from Address " << Address << " Id = " << who);
if(who == MyId){
XdmfByte *dp;
// cout << "That's me!!" << endl;
// dp = (XdmfByte *)this->Storage->GetDataPointer();
// Stay out of HDF library. If it is threadsafe if will
// deadlock on mpi_recv. If it is not threadsafe it will
// get corrupted
dp = this->DataPointer;
dp += Address - this->StartAddress;
memcpy(datap, dp, len);
}else{
XdmfInt32 status;
status = this->SendCommandHeader(XDMF_DSM_OPCODE_GET, who, Address, len);
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to send GET Header to " << who);
return(XDMF_FAIL);
}
this->Msg->SetTag(XDMF_DSM_RESPONSE_TAG);
status = this->ReceiveData(who, datap, len);
if(status == XDMF_FAIL){
XdmfErrorMessage("Failed to receive " << len << " bytes of data from " << who);
return(XDMF_FAIL);
}
}
aLength -= len;
Address += len;
datap += len;
}
return(XDMF_SUCCESS);
}
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