Google xml site map creation problem

I am facing errors in generating sitemaps for wordpress sites due to large number of posts. I have posted this issue to varoius forums but still did not received good reply. I got few replies that it is due to web host server resources but how to resolve it? As I cannot buy my own server. I have to run my sites and shared server.

My issue is that I am running various wordpress blogs like [NOPARSE]http://jobs-for-indians.co.in[/NOPARSE] and [NOPARSE]http://dugg.pk[/NOPARSE] and some others. I am using wordpress 2.9.2 at my said blogs. I am using Dagon Design Sitemap Generator to display site map at my blogs and Google XML Sitemaps generator plug-in but whenever my posts grow both plugins give errors of server resources and they don’t work. In response to my earlier posts I got few replies that it is due to web server resource issue but is there any way by which I can resolve the issue by having my sites at shared server as I cannot have a dedicated server. I have tried various shared web host but every where I faced same issue

If your host isn’t in safe_mode, you could hack the plugins to increase time and memory limits. But if you over do it it might get your host upset with possible repercussions.

If you have that many posts you could try not including the canonical URLs. They’re only seen as duplicate content anyway and it should make things go easier/faster. eg. Only include Post, not Archive or Tag

Other than that you could break up your large sitemap.xml file into multiple sitemap.xml files and point to them using a siteindex.xml file.