ems-typed
Version:
Persistent Shared Memory and Parallel Programming Model
107 lines (91 loc) • 5.48 kB
JavaScript
/*-----------------------------------------------------------------------------+
| Extended Memory Semantics (EMS) Version 1.0.0 |
| Synthetic Semantics http://www.synsem.com/ mogill@synsem.com |
+-----------------------------------------------------------------------------+
| Copyright (c) 2011-2014, Synthetic Semantics LLC. All rights reserved. |
| Copyright (c) 2015-2016, Jace A Mogill. All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| * Neither the name of the Synthetic Semantics nor the names of its |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SYNTHETIC |
| SEMANTICS LLC BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
+-----------------------------------------------------------------------------*/
var ems = require('ems')(parseInt(process.argv[2]), true, 'fj');
ems.parallel(function () {
//-------------------------------------------------------------------
// Timer functions
function timerStart() { return new Date().getTime(); }
function timerStop(timer, nOps, label, myID) {
function fmtNumber(n) {
var s = ' ' + n.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
if(n < 1) return n;
else { return s.substr(s.length - 15, s.length) }
}
var now = new Date().getTime();
var opsPerSec = (nOps*1000000) / ((now - timer) *1000);
if(typeof myID === undefined || myID === 0) {
console.log(fmtNumber(nOps) + label + fmtNumber(Math.floor(opsPerSec).toString()) + " ops/sec");
}
}
totalTime = timerStart();
arrLen = 2000000;
a = ems.new(arrLen);
b = ems.new(arrLen);
c = ems.new(arrLen);
var startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.write(idx, idx) } );
timerStop(startTime, arrLen, " write ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.writeXE(idx, idx) } );
timerStop(startTime, arrLen, " writeXE ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.writeXF(idx, idx) } );
timerStop(startTime, arrLen, " writeXF ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.read(idx, idx) } );
timerStop(startTime, arrLen, " read ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.read(idx, idx) } );
timerStop(startTime, arrLen, " reread ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.readFF(idx, idx) } );
timerStop(startTime, arrLen, " readFF ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.readFE(idx, idx) } );
timerStop(startTime, arrLen, " readFE ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { a.writeEF(idx, idx) } );
timerStop(startTime, arrLen, " writeEF ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { b.writeXF(idx, a.readFF(idx)) } );
timerStop(startTime, arrLen, " copy ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { b.writeXF(idx, a.readFF(idx)) } );
timerStop(startTime, arrLen, " recopy ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { c.writeXF(idx, a.readFF(idx) * b.readFF(idx)) } );
timerStop(startTime, arrLen, " c=a*b ", ems.myID);
startTime = timerStart();
ems.parForEach(0, arrLen, function(idx) { c.writeXF(idx, c.readFF(idx) + (a.readFF(idx) * b.readFF(idx))) } );
timerStop(startTime, arrLen, " c+=a*b ", ems.myID);
} );
process.exit(0);