Increase maximum upper limit?

[FlorianWendelborn]

Is there any easy way you could increase the maximum upper limit? I'm currently trying to get all prime numbers up to 1592524800 and get this error:

  var numbers = new Int8Array(max + 1);
                ^
RangeError: Invalid array buffer length
    at new ArrayBuffer (native)
    at new Int8Array (native)
    at seive (sieve\sieve.js:16:17)
    at Object.<anonymous> (primePNG.density.sieve.js:10:14)
    at Module._compile (module.js:449:26)
    at Object.Module._extensions..js (module.js:467:10)
    at Module.load (module.js:349:32)
    at Function.Module._load (module.js:305:12)
    at Function.Module.runMain (module.js:490:10)
    at startup (node.js:124:16)

It's no important research or anything. I'm only generating some PNG patterns out of it, but it'd be nice if you could use something bigger than an Int8Array. (I guess that's the reason for the RangeError)

[regality]

The problem is not that it's an Int8Array, it's just that v8 has some hard limits on memory use.

It turns out that this is a harder problem to solve. Initializing an array that large is not possible due to memory limitations. The solution is only store the primes, as this will decrease memory usage, but will likely result in a slower implementation. Once you hit the array limit with your primes, you need to swap pieces of your prime list out to disk, making the problem even harder.

It is on my todo list to make this improvement, but I'm not sure when I'll get to it. If you wanted to take a stab at it, feel free, I accept pull requests. If not, there are other prime number generators, and prime number lists available; they may suit your needs better.