Prezados colegas da lista, estava tentando rodar este exemplo quando tive problema de alocação de memória, alguém poderia me ajudar a resolver?

Att,

 

Ari Clecius Alves de Lima
Engenheiro Químico
Me. Engenharia Civil
(085)88412345
(085)33669042

#CMR

processador: Intel(R) Core(TM) i3 CPU M380 @2.53GHz

Memória instalada(RAM): 4,00 GB (utilizável:2,93)

Sistema oeracional de 32 Bits

R version 3.1.1 (2014-07-10) -- "Sock it to Me"

Copyright (C) 2014 The R Foundation for Statistical Computing

Platform: i386-w64-mingw32/i386 (32-bit)

N <- 100000000

x <- runif(N)

y <- runif(N)

ok <- sum(x^2 + y^2 < 1)

mc.pi <- 4 * ok / N

sprintf("pi = %.6lf\n", mc.pi)

#1ª tentativa

>N <- 100000000

>x <- runif(N)

> y <- runif(N)

Error: cannot allocate vector of size 762.9 Mb

In addition: Warning messages:

1: In runif(N) : Reached total allocation of 1535Mb: see help(memory.size)

2: In runif(N) : Reached total allocation of 1535Mb: see help(memory.size)

3: In runif(N) : Reached total allocation of 1535Mb: see help(memory.size)

4: In runif(N) : Reached total allocation of 1535Mb: see help(memory.size)

> ok <- sum(x^2 + y^2 < 1)

Error: cannot allocate vector of size 762.9 Mb

In addition: Warning messages:

1: Reached total allocation of 1535Mb: see help(memory.size) 

2: Reached total allocation of 1535Mb: see help(memory.size) 

3: Reached total allocation of 1535Mb: see help(memory.size) 

4: Reached total allocation of 1535Mb: see help(memory.size) 

> mc.pi <- 4 * ok / N

Error: object 'ok' not found

> sprintf("pi = %.6lf\n", mc.pi)

Error in sprintf("pi = %.6lf\n", mc.pi) : object 'mc.pi' not found

memory.size(2900)

2ª tentativa

> N <- 100000000

> x <- runif(N)

Error: cannot allocate vector of size 762.9 Mb

> y <- runif(N)

Error: cannot allocate vector of size 762.9 Mb

> ok <- sum(x^2 + y^2 < 1)

Error: cannot allocate vector of size 762.9 Mb

> mc.pi <- 4 * ok / N

Error: object 'ok' not found

> sprintf("pi = %.6lf\n", mc.pi)

Error in sprintf("pi = %.6lf\n", mc.pi) : object 'mc.pi' not found

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