ems/Tests/stringTags.js

Persistent Shared Memory and Parallel Programming Model

/*-----------------------------------------------------------------------------+
 |  Extended Memory Semantics (EMS)                            Version 1.0.0   |
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 +-----------------------------------------------------------------------------*/
var ems = require('ems')(parseInt(process.argv[2]), false);
var assert = require('assert');

var data = ems.new(100, 10000, '/tmp/EMS_sanity');
//data.writeXF(ems.myID, "init"+ems.myID)
data.writeXF(ems.myID, 100 + ems.myID);
var readback = data.readFF(ems.myID);
var computed = "init" + ems.myID;
assert(data.readFF(ems.myID) === 100 + ems.myID, "Readback FF was wrong: " + readback + " != " + computed);

ems.barrier();
assert(data.readFE(ems.myID) === 100 + (ems.myID) % ems.nThreads, "Bad wrap one " + data.read(ems.myID) + " " +
    (100 + ((ems.myID) % ems.nThreads)));

data.writeEF((ems.myID + 2) % ems.nThreads, "second" + ems.myID);

readback = data.readFF(ems.myID);
computed = "second" + (ems.myID - 2 + ems.nThreads) % ems.nThreads;
assert(readback === computed, "Bad snake shift: " + readback + " != " + computed);