Fortran 90 (need to read in binary data files into arrays)

[sparkstermaes]

Hello,

I am currently doing a 3rd year undergrad project on forward radio meteor scatter

the problem involves the following:

I have over 80Gbs worth of 10 second data blocks of recorded radio input.

They are stored as date stamped .bin files in binary format, each of order 1700kb or so.

I am using a filter constructed in MatLab and fortran 90

I am reading in the filter to an array... then reading in the binary data blocks in blocks of 10 or 20. multiplying through the filter and outputing to a single .dat data file.

previously i was using test data that was in the ASCII language. now I have to convert the program to operate on binary files.

Is there an easy way to adapt the program to read in binary files into an array?

thank you. any more information, please ask.

 

[JakeA]

The easiest thing would be to convert your data set to a format that the current Fortran/Matlab app can read. Coding in that particular environment is nasty. Use something like C++ or Java to do the conversion.

 

[oswaler]

Hello,

It sounds like you are working on an interesting project involving radio meteor scatter. Fortran 90 is a great choice for handling large amounts of data and I'm glad to hear you are using it for your project. As for reading in binary data files into arrays, there are a few different approaches you could take.

One option would be to use the Fortran 90 intrinsic function "read" to read in the binary data directly into your array. This function allows you to specify the format of the data being read, so you can ensure that it is being read in correctly. Alternatively, you could use the "transfer" function to convert the binary data into the appropriate data type for your array.

Another approach would be to use the "open" statement to open the binary file and then use the "get" statement to read in the data block by block. This would allow you to control the size of the data being read in at once and potentially improve the efficiency of your program.

I would also recommend looking into any libraries or modules that may be available for Fortran 90 specifically for handling binary data. These could provide you with pre-written functions or routines that may simplify the process for you.

I hope this helps and good luck with your project! If you need any further assistance, please feel free to ask for more information.