Tuning of cache values

git-svn-id: https://mosesdecoder.svn.sourceforge.net/svnroot/mosesdecoder/trunk@766 1f5c12ca-751b-0410-a591-d2e778427230

1 files changed, 8 insertions, 4 deletions

diff --git a/irstlm/src/ngramcache.cpp b/irstlm/src/ngramcache.cpp
index 271be4cf1..3b4234bcc 100644
--- a/irstlm/src/ngramcache.cpp
+++ b/irstlm/src/ngramcache.cpp
@@ -35,7 +35,7 @@ ngramcache::ngramcache(int n,int size,int maxentries){
       maxn=maxentries;
       entries=0;
       ht=new htable(maxn * 2, ngsize * sizeof(int),INT,NULL); //lower load factor to reduce collisions 
-      mp=new mempool(ngsize * sizeof(int)+infosize,maxn/5); 
+      mp=new mempool(ngsize * sizeof(int)+infosize,1000000); 
       accesses=0;
       hits=0;
     };
@@ -47,15 +47,19 @@ ngramcache::~ngramcache(){
 };
 
 
-void ngramcache::reset(){
+//resize cache to specified number of entries
+void ngramcache::reset(int n){
     ht->stat();
-    delete ht;delete mp;    
+    delete ht;delete mp;  
+    if (n>0) maxn=n;
     ht=new htable(maxn * 2, ngsize * sizeof(int),INT,NULL); //load factor 2   
-    mp=new mempool(ngsize * sizeof(int)+infosize,maxn/5); 
+    mp=new mempool(ngsize * sizeof(int)+infosize,1000000); 
     entries=0;
   }
 
 
+
+
 char* ngramcache::get(const int* ngp,char* info){       
     char *found;
    // cout << "ngramcache::get() ";